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272255906 = 213101310337
BaseRepresentation
bin10000001110100…
…100101110100010
3200222022000220002
4100032210232202
51024144142111
643003220002
76514064666
oct2016445642
9628260802
10272255906
1112a75498a
1277217602
1344535890
14282308a6
1518d7d63b
hex103a4ba2

272255906 has 16 divisors (see below), whose sum is σ = 440274744. Its totient is φ = 125520384.

The previous prime is 272255881. The next prime is 272255911. The reversal of 272255906 is 609552272.

It can be written as a sum of positive squares in 4 ways, for example, as 27615025 + 244640881 = 5255^2 + 15641^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 272255906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21170 + ... + 31506.

Almost surely, 2272255906 is an apocalyptic number.

272255906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

272255906 is a deficient number, since it is larger than the sum of its proper divisors (168018838).

272255906 is a wasteful number, since it uses less digits than its factorization.

272255906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11365.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 272255906 is about 16500.1789687264. The cubic root of 272255906 is about 648.1254916867.

The spelling of 272255906 in words is "two hundred seventy-two million, two hundred fifty-five thousand, nine hundred six".

Divisors: 1 2 13 26 1013 2026 10337 13169 20674 26338 134381 268762 10471381 20942762 136127953 272255906