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52668315 = 3257612741
BaseRepresentation
bin1100100011101…
…0011110011011
310200002211100100
43020322132123
5101440341230
65120510443
71206446640
oct310723633
9120084310
1052668315
1127803537
121577b423
13abb0aab
146dcddc7
154955660
hex323a79b

52668315 has 48 divisors (see below), whose sum is σ = 106082496. Its totient is φ = 23673600.

The previous prime is 52668311. The next prime is 52668337. The reversal of 52668315 is 51386625.

It is not a de Polignac number, because 52668315 - 22 = 52668311 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 52668315.

It is not an unprimeable number, because it can be changed into a prime (52668311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17845 + ... + 20585.

It is an arithmetic number, because the mean of its divisors is an integer number (2210052).

Almost surely, 252668315 is an apocalyptic number.

52668315 is an abundant number, since it is smaller than the sum of its proper divisors (53414181).

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

52668315 is a wasteful number, since it uses less digits than its factorization.

52668315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820 (or 2817 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 52668315 is about 7257.2939171567. The cubic root of 52668315 is about 374.8433479028.

The spelling of 52668315 in words is "fifty-two million, six hundred sixty-eight thousand, three hundred fifteen".

Divisors: 1 3 5 7 9 15 21 35 45 61 63 105 183 305 315 427 549 915 1281 2135 2741 2745 3843 6405 8223 13705 19187 19215 24669 41115 57561 95935 123345 167201 172683 287805 501603 836005 863415 1170407 1504809 2508015 3511221 5852035 7524045 10533663 17556105 52668315