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131302274 = 2193455323
BaseRepresentation
bin1111101001110…
…00001110000010
3100011001211212012
413310320032002
5232103133044
621010132522
73153023315
oct764701602
9304054765
10131302274
1168131384
1237b81142
132128346c
141361c97c
15b7d959e
hex7d38382

131302274 has 8 divisors (see below), whose sum is σ = 207319440. Its totient is φ = 62195796.

The previous prime is 131302261. The next prime is 131302279. The reversal of 131302274 is 472203131.

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 (131302279) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1727624 + ... + 1727699.

It is an arithmetic number, because the mean of its divisors is an integer number (25914930).

Almost surely, 2131302274 is an apocalyptic number.

131302274 is a deficient number, since it is larger than the sum of its proper divisors (76017166).

131302274 is a wasteful number, since it uses less digits than its factorization.

131302274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455344.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 131302274 is about 11458.7204346733. The cubic root of 131302274 is about 508.2656375199.

The spelling of 131302274 in words is "one hundred thirty-one million, three hundred two thousand, two hundred seventy-four".

Divisors: 1 2 19 38 3455323 6910646 65651137 131302274