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131228314 = 279373451
BaseRepresentation
bin1111101001001…
…10001010011010
3100010221002101221
413310212022122
5232043301224
621004402254
73152264560
oct764461232
9303832357
10131228314
1168090858
1237b4638a
13212588b9
14135dda30
15b7c26e4
hex7d2629a

131228314 has 8 divisors (see below), whose sum is σ = 224962848. Its totient is φ = 56240700.

The previous prime is 131228311. The next prime is 131228329. The reversal of 131228314 is 413822131.

It is a happy number.

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 (131228311) 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, 4686712 + ... + 4686739.

It is an arithmetic number, because the mean of its divisors is an integer number (28120356).

Almost surely, 2131228314 is an apocalyptic number.

131228314 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131228314 is a deficient number, since it is larger than the sum of its proper divisors (93734534).

131228314 is an equidigital number, since it uses as much as digits as its factorization.

131228314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9373460.

The product of its digits is 1152, while the sum is 25.

The square root of 131228314 is about 11455.4927436580. The cubic root of 131228314 is about 508.1701875688.

The spelling of 131228314 in words is "one hundred thirty-one million, two hundred twenty-eight thousand, three hundred fourteen".

Divisors: 1 2 7 14 9373451 18746902 65614157 131228314