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272774660 = 22525753069
BaseRepresentation
bin10000010000100…
…011011000000100
3201000021101111012
4100100203120010
51024312242120
643022301352
76521355254
oct2020433004
9630241435
10272774660
1112aa79704
1277427858
1344687a32
1428327964
1518e321c5
hex10423604

272774660 has 24 divisors (see below), whose sum is σ = 575066520. Its totient is φ = 108683264.

The previous prime is 272774651. The next prime is 272774669. The reversal of 272774660 is 66477272.

It is an interprime number because it is at equal distance from previous prime (272774651) and next prime (272774669).

It can be written as a sum of positive squares in 4 ways, for example, as 190219264 + 82555396 = 13792^2 + 9086^2 .

It is not an unprimeable number, because it can be changed into a prime (272774669) 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, 21395 + ... + 31674.

It is an arithmetic number, because the mean of its divisors is an integer number (23961105).

Almost surely, 2272774660 is an apocalyptic number.

272774660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272774660 is an abundant number, since it is smaller than the sum of its proper divisors (302291860).

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

272774660 is a wasteful number, since it uses less digits than its factorization.

272774660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53335 (or 53333 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 41.

The square root of 272774660 is about 16515.8911355095. The cubic root of 272774660 is about 648.5368747122.

The spelling of 272774660 in words is "two hundred seventy-two million, seven hundred seventy-four thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 257 514 1028 1285 2570 5140 53069 106138 212276 265345 530690 1061380 13638733 27277466 54554932 68193665 136387330 272774660