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272185684 = 2268046421
BaseRepresentation
bin10000001110010…
…011100101010100
3200222011110120021
4100032103211110
51024134420214
643001514524
76513353161
oct2016234524
9628143507
10272185684
1112a707151
12771a2a44
134450c924
1428213068
1518d67924
hex10393954

272185684 has 6 divisors (see below), whose sum is σ = 476324954. Its totient is φ = 136092840.

The previous prime is 272185679. The next prime is 272185733. The reversal of 272185684 is 486581272.

It is a happy number.

272185684 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 224160784 + 48024900 = 14972^2 + 6930^2 .

272185684 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 272185684.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34023207 + ... + 34023214.

Almost surely, 2272185684 is an apocalyptic number.

It is an amenable number.

272185684 is a deficient number, since it is larger than the sum of its proper divisors (204139270).

272185684 is a wasteful number, since it uses less digits than its factorization.

272185684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68046425 (or 68046423 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 272185684 is about 16498.0509151839. The cubic root of 272185684 is about 648.0697639922.

The spelling of 272185684 in words is "two hundred seventy-two million, one hundred eighty-five thousand, six hundred eighty-four".

Divisors: 1 2 4 68046421 136092842 272185684