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131351470 = 25125910433
BaseRepresentation
bin1111101010001…
…00001110101110
3100011011100100021
413311010032232
5232111221340
621011152354
73153316615
oct765041656
9304140307
10131351470
1168165338
1237ba56ba
132129c983
141363287c
15b7e8e4a
hex7d443ae

131351470 has 16 divisors (see below), whose sum is σ = 236643120. Its totient is φ = 52493824.

The previous prime is 131351449. The next prime is 131351477. The reversal of 131351470 is 74153131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131351477) 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, 7374 + ... + 17806.

It is an arithmetic number, because the mean of its divisors is an integer number (14790195).

Almost surely, 2131351470 is an apocalyptic number.

131351470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131351470 is a deficient number, since it is larger than the sum of its proper divisors (105291650).

131351470 is a wasteful number, since it uses less digits than its factorization.

131351470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11699.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 131351470 is about 11460.8668956585. The cubic root of 131351470 is about 508.3291081497.

The spelling of 131351470 in words is "one hundred thirty-one million, three hundred fifty-one thousand, four hundred seventy".

Divisors: 1 2 5 10 1259 2518 6295 10433 12590 20866 52165 104330 13135147 26270294 65675735 131351470