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131948008 = 23197731123
BaseRepresentation
bin1111101110101…
…01110111101000
3100012021122122021
413313111313220
5232234314013
621032034224
73161353033
oct767256750
9305248567
10131948008
1168532545
1238232974
132144b35a
141374a01a
15b8b5a8d
hex7dd5de8

131948008 has 32 divisors (see below), whose sum is σ = 260992800. Its totient is φ = 62365248.

The previous prime is 131947973. The next prime is 131948009. The reversal of 131948008 is 800849131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131948009) 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, 116935 + ... + 118057.

It is an arithmetic number, because the mean of its divisors is an integer number (8156025).

Almost surely, 2131948008 is an apocalyptic number.

It is an amenable number.

131948008 is a deficient number, since it is larger than the sum of its proper divisors (129044792).

131948008 is a wasteful number, since it uses less digits than its factorization.

131948008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921 (or 1917 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 131948008 is about 11486.8624088565. The cubic root of 131948008 is about 509.0974785098.

The spelling of 131948008 in words is "one hundred thirty-one million, nine hundred forty-eight thousand, eight".

Divisors: 1 2 4 8 19 38 76 152 773 1123 1546 2246 3092 4492 6184 8984 14687 21337 29374 42674 58748 85348 117496 170696 868079 1736158 3472316 6944632 16493501 32987002 65974004 131948008