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52902756 = 22321469521
BaseRepresentation
bin1100100111001…
…1101101100100
310200112201221100
43021303231210
5102020342011
65125520100
71211444304
oct311635544
9120481840
1052902756
1127953695
1215873030
13ac6370a
147051604
15499ed56
hex3273b64

52902756 has 18 divisors (see below), whose sum is σ = 133726502. Its totient is φ = 17634240.

The previous prime is 52902749. The next prime is 52902769. The reversal of 52902756 is 65720925.

It can be written as a sum of positive squares in only one way, i.e., 33454656 + 19448100 = 5784^2 + 4410^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1469521 = 52902756 / (5 + 2 + 9 + 0 + 2 + 7 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 52902756.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 734725 + ... + 734796.

Almost surely, 252902756 is an apocalyptic number.

It is an amenable number.

52902756 is an abundant number, since it is smaller than the sum of its proper divisors (80823746).

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

52902756 is a wasteful number, since it uses less digits than its factorization.

52902756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469531 (or 1469526 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 52902756 is about 7273.4280775986. The cubic root of 52902756 is about 375.3987012825.

The spelling of 52902756 in words is "fifty-two million, nine hundred two thousand, seven hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 1469521 2939042 4408563 5878084 8817126 13225689 17634252 26451378 52902756