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272057652 = 22327557157
BaseRepresentation
bin10000001101110…
…100010100110100
3200221220221221100
4100031310110310
51024121321102
642555050100
76512310666
oct2015642464
9627827840
10272057652
1112a629a39
1277140930
1344496579
14281bc536
1518d3ea1c
hex10374534

272057652 has 18 divisors (see below), whose sum is σ = 687701378. Its totient is φ = 90685872.

The previous prime is 272057651. The next prime is 272057657. The reversal of 272057652 is 256750272.

It can be written as a sum of positive squares in only one way, i.e., 271458576 + 599076 = 16476^2 + 774^2 .

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: 7557157 = 272057652 / (2 + 7 + 2 + 0 + 5 + 7 + 6 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272057651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3778543 + ... + 3778614.

Almost surely, 2272057652 is an apocalyptic number.

It is an amenable number.

272057652 is an abundant number, since it is smaller than the sum of its proper divisors (415643726).

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

272057652 is a wasteful number, since it uses less digits than its factorization.

272057652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7557167 (or 7557162 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 272057652 is about 16494.1702428464. The cubic root of 272057652 is about 647.9681340068.

The spelling of 272057652 in words is "two hundred seventy-two million, fifty-seven thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 7557157 15114314 22671471 30228628 45342942 68014413 90685884 136028826 272057652