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272057540 = 22513602877
BaseRepresentation
bin10000001101110…
…100010011000100
3200221220221210012
4100031310103010
51024121320130
642555045352
76512310446
oct2015642304
9627827705
10272057540
1112a629947
1277140858
13444964c1
14281bc496
1518d3e995
hex103744c4

272057540 has 12 divisors (see below), whose sum is σ = 571320876. Its totient is φ = 108823008.

The previous prime is 272057521. The next prime is 272057563. The reversal of 272057540 is 45750272.

It can be written as a sum of positive squares in 2 ways, for example, as 53963716 + 218093824 = 7346^2 + 14768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 272057497 and 272057506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6801419 + ... + 6801458.

It is an arithmetic number, because the mean of its divisors is an integer number (47610073).

Almost surely, 2272057540 is an apocalyptic number.

272057540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272057540 is an abundant number, since it is smaller than the sum of its proper divisors (299263336).

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

272057540 is a wasteful number, since it uses less digits than its factorization.

272057540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13602886 (or 13602884 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 272057540 is about 16494.1668477071. The cubic root of 272057540 is about 647.9680450889.

The spelling of 272057540 in words is "two hundred seventy-two million, fifty-seven thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 13602877 27205754 54411508 68014385 136028770 272057540