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131604064 = 254112627
BaseRepresentation
bin1111101100000…
…01111001100000
3100011122011211121
413312001321200
5232142312224
621020422024
73155421214
oct766017140
9304564747
10131604064
1168318099
12380a7914
132135a937
141369a944
15b848be4
hex7d81e60

131604064 has 12 divisors (see below), whose sum is σ = 259095564. Its totient is φ = 65802016.

The previous prime is 131604029. The next prime is 131604103. The reversal of 131604064 is 460406131.

It is a super-2 number, since 2×1316040642 = 34639259322632192, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2056282 + ... + 2056345.

It is an arithmetic number, because the mean of its divisors is an integer number (21591297).

Almost surely, 2131604064 is an apocalyptic number.

It is an amenable number.

131604064 is a deficient number, since it is larger than the sum of its proper divisors (127491500).

131604064 is an equidigital number, since it uses as much as digits as its factorization.

131604064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4112637 (or 4112629 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 131604064 is about 11471.8814498756. The cubic root of 131604064 is about 508.6547450685.

The spelling of 131604064 in words is "one hundred thirty-one million, six hundred four thousand, sixty-four".

Divisors: 1 2 4 8 16 32 4112627 8225254 16450508 32901016 65802032 131604064