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131352243 = 31118121991
BaseRepresentation
bin1111101010001…
…00011010110011
3100011011101101220
413311010122303
5232111232433
621011200123
73153322101
oct765043263
9304141356
10131352243
1168165980
1237ba6043
13212a0129
1413632c71
15b7e92b3
hex7d446b3

131352243 has 16 divisors (see below), whose sum is σ = 192122112. Its totient is φ = 79164000.

The previous prime is 131352203. The next prime is 131352283. The reversal of 131352243 is 342253131.

It is an interprime number because it is at equal distance from previous prime (131352203) and next prime (131352283).

It is not a de Polignac number, because 131352243 - 210 = 131351219 is a prime.

It is a super-2 number, since 2×1313522432 = 34506823482262098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131352203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5023 + ... + 16968.

It is an arithmetic number, because the mean of its divisors is an integer number (12007632).

Almost surely, 2131352243 is an apocalyptic number.

131352243 is a deficient number, since it is larger than the sum of its proper divisors (60769869).

131352243 is a wasteful number, since it uses less digits than its factorization.

131352243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22186.

The product of its digits is 2160, while the sum is 24.

The square root of 131352243 is about 11460.9006190613. The cubic root of 131352243 is about 508.3301053156.

The spelling of 131352243 in words is "one hundred thirty-one million, three hundred fifty-two thousand, two hundred forty-three".

Divisors: 1 3 11 33 181 543 1991 5973 21991 65973 241901 725703 3980371 11941113 43784081 131352243