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272747252 = 22174197829
BaseRepresentation
bin10000010000011…
…100101011110100
3201000012222220002
4100100130223310
51024310403002
643021530432
76521212331
oct2020345364
9630188802
10272747252
1112aa60058
1277413a18
134467840b
142831b988
1518e29002
hex1041caf4

272747252 has 24 divisors (see below), whose sum is σ = 517716360. Its totient is φ = 125219840.

The previous prime is 272747249. The next prime is 272747257. The reversal of 272747252 is 252747272.

It can be written as a sum of positive squares in 4 ways, for example, as 30758116 + 241989136 = 5546^2 + 15556^2 .

It is an alternating number because its digits alternate between even and odd.

272747252 is a modest number, since divided by 747252 gives 272 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272747257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46127 + ... + 51702.

It is an arithmetic number, because the mean of its divisors is an integer number (21571515).

Almost surely, 2272747252 is an apocalyptic number.

It is an amenable number.

272747252 is a deficient number, since it is larger than the sum of its proper divisors (244969108).

272747252 is a wasteful number, since it uses less digits than its factorization.

272747252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97891 (or 97889 counting only the distinct ones).

The product of its digits is 109760, while the sum is 38.

The square root of 272747252 is about 16515.0613683389. The cubic root of 272747252 is about 648.5151526382.

The spelling of 272747252 in words is "two hundred seventy-two million, seven hundred forty-seven thousand, two hundred fifty-two".

Divisors: 1 2 4 17 34 41 68 82 164 697 1394 2788 97829 195658 391316 1663093 3326186 4010989 6652372 8021978 16043956 68186813 136373626 272747252