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207530310100 = 2252171937173651
BaseRepresentation
bin1100000101000111000…
…1010011100111010100
3201211200010220001222111
43001101301103213110
511400010224410400
6235201010440404
720664536346601
oct3012161234724
9654603801874
10207530310100
11800164a4683
1234279593104
1316754460379
14a08a2436a8
1555e95e23ba
hex3051c539d4

207530310100 has 144 divisors (see below), whose sum is σ = 515496381120. Its totient is φ = 72016128000.

The previous prime is 207530310089. The next prime is 207530310131. The reversal of 207530310100 is 1013035702.

207530310100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2075303101002 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1108275 + ... + 1281925.

It is an arithmetic number, because the mean of its divisors is an integer number (3579835980).

Almost surely, 2207530310100 is an apocalyptic number.

207530310100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 207530310100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257748190560).

207530310100 is an abundant number, since it is smaller than the sum of its proper divisors (307966071020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

207530310100 is a wasteful number, since it uses less digits than its factorization.

207530310100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173738 (or 173731 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

Adding to 207530310100 its reverse (1013035702), we get a palindrome (208543345802).

The spelling of 207530310100 in words is "two hundred seven billion, five hundred thirty million, three hundred ten thousand, one hundred".

Divisors: 1 2 4 5 10 17 19 20 25 34 37 38 50 68 74 76 85 95 100 148 170 185 190 323 340 370 380 425 475 629 646 703 740 850 925 950 1258 1292 1406 1615 1700 1850 1900 2516 2812 3145 3230 3515 3700 6290 6460 7030 8075 11951 12580 14060 15725 16150 17575 23902 31450 32300 35150 47804 59755 62900 70300 119510 173651 239020 298775 347302 597550 694604 868255 1195100 1736510 2952067 3299369 3473020 4341275 5904134 6425087 6598738 8682550 11808268 12850174 13197476 14760335 16496845 17365100 25700348 29520670 32125435 32993690 56089273 59041340 64250870 65987380 73801675 82484225 109226479 112178546 122076653 128501740 147603350 160627175 164968450 218452958 224357092 244153306 280446365 295206700 321254350 329936900 436905916 488306612 546132395 560892730 610383265 642508700 1092264790 1121785460 1220766530 1402231825 2075303101 2184529580 2441533060 2730661975 2804463650 3051916325 4150606202 5461323950 5608927300 6103832650 8301212404 10376515505 10922647900 12207665300 20753031010 41506062020 51882577525 103765155050 207530310100