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272820474 = 235561359
BaseRepresentation
bin10000010000101…
…110100011111010
3201000100201100000
4100100232203322
51024320223344
643023253430
76521635653
oct2020564372
9630321300
10272820474
11130000073
127744a276
13446a2844
142833a52a
1518e40a69
hex1042e8fa

272820474 has 24 divisors (see below), whose sum is σ = 613005120. Its totient is φ = 90939996.

The previous prime is 272820467. The next prime is 272820517. The reversal of 272820474 is 474028272.

It is a super-2 number, since 2×2728204742 = 148862022067169352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280194 + ... + 281165.

It is an arithmetic number, because the mean of its divisors is an integer number (25541880).

Almost surely, 2272820474 is an apocalyptic number.

272820474 is an abundant number, since it is smaller than the sum of its proper divisors (340184646).

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

272820474 is an equidigital number, since it uses as much as digits as its factorization.

272820474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561376 (or 561364 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 272820474 is about 16517.2780445205. The cubic root of 272820474 is about 648.5731811212.

The spelling of 272820474 in words is "two hundred seventy-two million, eight hundred twenty thousand, four hundred seventy-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 561359 1122718 1684077 3368154 5052231 10104462 15156693 30313386 45470079 90940158 136410237 272820474