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52630650 = 232522937109
BaseRepresentation
bin1100100011000…
…1010001111010
310200000220200100
43020301101322
5101433140100
65120020230
71206232062
oct310612172
9120026610
1052630650
1127788206
1215761676
13ab998c7
146dc03a2
154949400
hex323147a

52630650 has 144 divisors (see below), whose sum is σ = 151608600. Its totient is φ = 13063680.

The previous prime is 52630649. The next prime is 52630651. The reversal of 52630650 is 5603625.

52630650 is a `hidden beast` number, since 5 + 2 + 6 + 3 + 0 + 650 = 666.

It is an interprime number because it is at equal distance from previous prime (52630649) and next prime (52630651).

It can be written as a sum of positive squares in 12 ways, for example, as 16378209 + 36252441 = 4047^2 + 6021^2 .

It is not an unprimeable number, because it can be changed into a prime (52630651) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 482796 + ... + 482904.

Almost surely, 252630650 is an apocalyptic number.

52630650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 52630650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75804300).

52630650 is an abundant number, since it is smaller than the sum of its proper divisors (98977950).

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

52630650 is a wasteful number, since it uses less digits than its factorization.

52630650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 52630650 is about 7254.6984775385. The cubic root of 52630650 is about 374.7539719558.

The spelling of 52630650 in words is "fifty-two million, six hundred thirty thousand, six hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 29 30 37 45 50 58 74 75 87 90 109 111 145 150 174 185 218 222 225 261 290 327 333 370 435 450 522 545 555 654 666 725 870 925 981 1073 1090 1110 1305 1450 1635 1665 1850 1962 2146 2175 2610 2725 2775 3161 3219 3270 3330 4033 4350 4905 5365 5450 5550 6322 6438 6525 8066 8175 8325 9483 9657 9810 10730 12099 13050 15805 16095 16350 16650 18966 19314 20165 24198 24525 26825 28449 31610 32190 36297 40330 47415 48285 49050 53650 56898 60495 72594 79025 80475 94830 96570 100825 116957 120990 142245 158050 160950 181485 201650 233914 237075 241425 284490 302475 350871 362970 474150 482850 584785 604950 701742 711225 907425 1052613 1169570 1422450 1754355 1814850 2105226 2923925 3508710 5263065 5847850 8771775 10526130 17543550 26315325 52630650