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201930080 = 25511172397
BaseRepresentation
bin11000000100100…
…11010101100000
3112001222002222212
430002103111200
5403143230310
632012021252
75001243302
oct1402232540
9461862885
10201930080
11a3a91070
1257761828
1332ab1971
141cb65972
1512adb205
hexc093560

201930080 has 144 divisors (see below), whose sum is σ = 554235696. Its totient is φ = 68935680.

The previous prime is 201930077. The next prime is 201930101. The reversal of 201930080 is 80039102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 508442 + ... + 508838.

It is an arithmetic number, because the mean of its divisors is an integer number (3848859).

Almost surely, 2201930080 is an apocalyptic number.

201930080 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 201930080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277117848).

201930080 is an abundant number, since it is smaller than the sum of its proper divisors (352305616).

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

201930080 is a wasteful number, since it uses less digits than its factorization.

201930080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 201930080 is about 14210.2104136427. The cubic root of 201930080 is about 586.6787244996.

Adding to 201930080 its reverse (80039102), we get a palindrome (281969182).

The spelling of 201930080 in words is "two hundred one million, nine hundred thirty thousand, eighty".

Divisors: 1 2 4 5 8 10 11 16 17 20 22 32 34 40 44 55 68 80 85 88 110 136 160 170 176 187 220 272 289 340 352 374 397 440 544 578 680 748 794 880 935 1156 1360 1445 1496 1588 1760 1870 1985 2312 2720 2890 2992 3176 3179 3740 3970 4367 4624 5780 5984 6352 6358 6749 7480 7940 8734 9248 11560 12704 12716 13498 14960 15880 15895 17468 21835 23120 25432 26996 29920 31760 31790 33745 34936 43670 46240 50864 53992 63520 63580 67490 69872 74239 87340 101728 107984 114733 127160 134980 139744 148478 174680 215968 229466 254320 269960 296956 349360 371195 458932 508640 539920 573665 593912 698720 742390 917864 1079840 1147330 1187824 1262063 1484780 1835728 2294660 2375648 2524126 2969560 3671456 4589320 5048252 5939120 6310315 9178640 10096504 11878240 12620630 18357280 20193008 25241260 40386016 50482520 100965040 201930080