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131641330 = 2513164133
BaseRepresentation
bin1111101100010…
…10111111110010
3100011201001221211
413312022333302
5232200010310
621021310334
73155634652
oct766127762
9304631854
10131641330
1168343097
12381053aa
13213718a2
14136aa362
15b854c8a
hex7d8aff2

131641330 has 8 divisors (see below), whose sum is σ = 236954412. Its totient is φ = 52656528.

The previous prime is 131641327. The next prime is 131641333. The reversal of 131641330 is 33146131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131641327) and next prime (131641333).

It can be written as a sum of positive squares in 2 ways, for example, as 119924401 + 11716929 = 10951^2 + 3423^2 .

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

It is not an unprimeable number, because it can be changed into a prime (131641333) 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, 6582057 + ... + 6582076.

Almost surely, 2131641330 is an apocalyptic number.

131641330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131641330 is a deficient number, since it is larger than the sum of its proper divisors (105313082).

131641330 is a wasteful number, since it uses less digits than its factorization.

131641330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13164140.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 131641330 is about 11473.5055671752. The cubic root of 131641330 is about 508.7027520430.

Adding to 131641330 its reverse (33146131), we get a palindrome (164787461).

The spelling of 131641330 in words is "one hundred thirty-one million, six hundred forty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 13164133 26328266 65820665 131641330