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131124906 = 2341173583
BaseRepresentation
bin1111101000011…
…00111010101010
3100010201211120000
413310030322222
5232031444111
621002243430
73151354233
oct764147252
9303654500
10131124906
11680200a0
1237ab6576
1321220803
14135b408a
15b7a1c56
hex7d0ceaa

131124906 has 40 divisors (see below), whose sum is σ = 320531904. Its totient is φ = 39734280.

The previous prime is 131124887. The next prime is 131124923. The reversal of 131124906 is 609421131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 131124906.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35010 + ... + 38573.

Almost surely, 2131124906 is an apocalyptic number.

131124906 is an abundant number, since it is smaller than the sum of its proper divisors (189406998).

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

131124906 is a wasteful number, since it uses less digits than its factorization.

131124906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73608 (or 73599 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 131124906 is about 11450.9783861467. The cubic root of 131124906 is about 508.0366730092.

The spelling of 131124906 in words is "one hundred thirty-one million, one hundred twenty-four thousand, nine hundred six".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 81 99 162 198 297 594 891 1782 73583 147166 220749 441498 662247 809413 1324494 1618826 1986741 2428239 3973482 4856478 5960223 7284717 11920446 14569434 21854151 43708302 65562453 131124906