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52769290 = 257753847
BaseRepresentation
bin1100100101001…
…1001000001010
310200021221212011
43021103020022
5102002104130
65123010134
71210350220
oct311231012
9120257764
1052769290
1127872392
121580994a
13ac17a42
147018b10
15497552a
hex325320a

52769290 has 16 divisors (see below), whose sum is σ = 108554112. Its totient is φ = 18092304.

The previous prime is 52769281. The next prime is 52769303. The reversal of 52769290 is 9296725.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376854 + ... + 376993.

It is an arithmetic number, because the mean of its divisors is an integer number (6784632).

Almost surely, 252769290 is an apocalyptic number.

52769290 is an abundant number, since it is smaller than the sum of its proper divisors (55784822).

52769290 is a wasteful number, since it uses less digits than its factorization.

52769290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753861.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 52769290 is about 7264.2473801489. The cubic root of 52769290 is about 375.0827432230.

The spelling of 52769290 in words is "fifty-two million, seven hundred sixty-nine thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 753847 1507694 3769235 5276929 7538470 10553858 26384645 52769290