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131004273 = 3431079491
BaseRepresentation
bin1111100111011…
…11011101110001
3100010111201002010
413303233131301
5232014114043
620555513133
73150342441
oct763573561
9303451063
10131004273
1167a484a4
1237a587a9
13211aa92a
1413582121
15b77b133
hex7cef771

131004273 has 16 divisors (see below), whose sum is σ = 180423936. Its totient is φ = 84498960.

The previous prime is 131004253. The next prime is 131004277. The reversal of 131004273 is 372400131.

It is not a de Polignac number, because 131004273 - 214 = 130987889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131004277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9058 + ... + 18548.

It is an arithmetic number, because the mean of its divisors is an integer number (11276496).

Almost surely, 2131004273 is an apocalyptic number.

It is an amenable number.

131004273 is a deficient number, since it is larger than the sum of its proper divisors (49419663).

131004273 is a wasteful number, since it uses less digits than its factorization.

131004273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9644.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 131004273 is about 11445.7098076091. The cubic root of 131004273 is about 507.8808297664.

The spelling of 131004273 in words is "one hundred thirty-one million, four thousand, two hundred seventy-three".

Divisors: 1 3 43 107 129 321 4601 9491 13803 28473 408113 1015537 1224339 3046611 43668091 131004273