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131883974 = 2471403021
BaseRepresentation
bin1111101110001…
…10001111000110
3100012011101210122
413313012033012
5232230241344
621030421542
73160665245
oct767061706
9305141718
10131883974
1168499422
12382018b2
1321428171
141373095c
15b8a1aee
hex7dc63c6

131883974 has 8 divisors (see below), whose sum is σ = 202035168. Its totient is φ = 64538920.

The previous prime is 131883949. The next prime is 131883979. The reversal of 131883974 is 479388131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131883979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701417 + ... + 701604.

It is an arithmetic number, because the mean of its divisors is an integer number (25254396).

Almost surely, 2131883974 is an apocalyptic number.

131883974 is a deficient number, since it is larger than the sum of its proper divisors (70151194).

131883974 is a wasteful number, since it uses less digits than its factorization.

131883974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403070.

The product of its digits is 145152, while the sum is 44.

The square root of 131883974 is about 11484.0747994778. The cubic root of 131883974 is about 509.0151106557.

The spelling of 131883974 in words is "one hundred thirty-one million, eight hundred eighty-three thousand, nine hundred seventy-four".

Divisors: 1 2 47 94 1403021 2806042 65941987 131883974