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131332308 = 22321151869
BaseRepresentation
bin1111101001111…
…11100011010100
3100011010101001120
413310333203110
5232110113213
621010523540
73153210012
oct764774324
9304111046
10131332308
11681519a8
1237b965b0
1321294033
14136298b2
15b7e3423
hex7d3f8d4

131332308 has 24 divisors (see below), whose sum is σ = 307900320. Its totient is φ = 43569120.

The previous prime is 131332297. The next prime is 131332319. The reversal of 131332308 is 803233131.

It is an interprime number because it is at equal distance from previous prime (131332297) and next prime (131332319).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23403 + ... + 28466.

It is an arithmetic number, because the mean of its divisors is an integer number (12829180).

Almost surely, 2131332308 is an apocalyptic number.

It is an amenable number.

131332308 is an abundant number, since it is smaller than the sum of its proper divisors (176568012).

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

131332308 is a wasteful number, since it uses less digits than its factorization.

131332308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52087 (or 52085 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 131332308 is about 11460.0308900107. The cubic root of 131332308 is about 508.3043880201.

Adding to 131332308 its reverse (803233131), we get a palindrome (934565439).

The spelling of 131332308 in words is "one hundred thirty-one million, three hundred thirty-two thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 211 422 633 844 1266 2532 51869 103738 155607 207476 311214 622428 10944359 21888718 32833077 43777436 65666154 131332308