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52697860 = 2252634893
BaseRepresentation
bin1100100100000…
…1101100000100
310200011022212121
43021001230010
5101442312420
65121255324
71206632035
oct311015404
9120138777
1052697860
1127823756
1215794544
13abc1387
146ddaa8c
15495e2aa
hex3241b04

52697860 has 12 divisors (see below), whose sum is σ = 110665548. Its totient is φ = 21079136.

The previous prime is 52697837. The next prime is 52697863. The reversal of 52697860 is 6879625.

It can be written as a sum of positive squares in 2 ways, for example, as 37063744 + 15634116 = 6088^2 + 3954^2 .

It is not an unprimeable number, because it can be changed into a prime (52697863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317427 + ... + 1317466.

It is an arithmetic number, because the mean of its divisors is an integer number (9222129).

Almost surely, 252697860 is an apocalyptic number.

It is an amenable number.

52697860 is an abundant number, since it is smaller than the sum of its proper divisors (57967688).

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

52697860 is a wasteful number, since it uses less digits than its factorization.

52697860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634902 (or 2634900 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 52697860 is about 7259.3291701093. The cubic root of 52697860 is about 374.9134259406.

The spelling of 52697860 in words is "fifty-two million, six hundred ninety-seven thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 2634893 5269786 10539572 13174465 26348930 52697860