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52691268 = 2237289611
BaseRepresentation
bin1100100100000…
…0000101000100
310200010222211110
43021000011010
5101442110033
65121205020
71206603600
oct311000504
9120128743
1052691268
1127819803
1215790770
13abbb386
146dd8500
15495c363
hex3240144

52691268 has 36 divisors (see below), whose sum is σ = 143020752. Its totient is φ = 15054480.

The previous prime is 52691263. The next prime is 52691269. The reversal of 52691268 is 86219625.

It is not an unprimeable number, because it can be changed into a prime (52691263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44218 + ... + 45393.

Almost surely, 252691268 is an apocalyptic number.

It is an amenable number.

52691268 is an abundant number, since it is smaller than the sum of its proper divisors (90329484).

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

52691268 is a wasteful number, since it uses less digits than its factorization.

52691268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89632 (or 89623 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 52691268 is about 7258.8751194658. The cubic root of 52691268 is about 374.8977925900.

The spelling of 52691268 in words is "fifty-two million, six hundred ninety-one thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 89611 179222 268833 358444 537666 627277 1075332 1254554 1881831 2509108 3763662 4390939 7527324 8781878 13172817 17563756 26345634 52691268