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131730476 = 22236123473
BaseRepresentation
bin1111101101000…
…00110000101100
3100011212121020112
413312200300230
5232210333401
621023235152
73156455603
oct766406054
9304777215
10131730476
11683a4069
1238148ab8
13213a3337
14136d0a3a
15b8713bb
hex7da0c2c

131730476 has 24 divisors (see below), whose sum is σ = 244505184. Its totient is φ = 61966080.

The previous prime is 131730463. The next prime is 131730481. The reversal of 131730476 is 674037131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6125 + ... + 17348.

It is an arithmetic number, because the mean of its divisors is an integer number (10187716).

Almost surely, 2131730476 is an apocalyptic number.

It is an amenable number.

131730476 is a deficient number, since it is larger than the sum of its proper divisors (112774708).

131730476 is a wasteful number, since it uses less digits than its factorization.

131730476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23561 (or 23559 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 131730476 is about 11477.3897729405. The cubic root of 131730476 is about 508.8175553569.

The spelling of 131730476 in words is "one hundred thirty-one million, seven hundred thirty thousand, four hundred seventy-six".

Divisors: 1 2 4 23 46 61 92 122 244 1403 2806 5612 23473 46946 93892 539879 1079758 1431853 2159516 2863706 5727412 32932619 65865238 131730476