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131342352 = 2434166739
BaseRepresentation
bin1111101010000…
…10000000010000
3100011010212211120
413311002000100
5232110423402
621011042240
73153251211
oct765020020
9304125746
10131342352
11681594a9
1237ba0380
132129878b
141362d408
15b7e63bc
hex7d42010

131342352 has 40 divisors (see below), whose sum is σ = 347581920. Its totient is φ = 42712320.

The previous prime is 131342347. The next prime is 131342359. The reversal of 131342352 is 253243131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (131342359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31402 + ... + 35337.

It is an arithmetic number, because the mean of its divisors is an integer number (8689548).

Almost surely, 2131342352 is an apocalyptic number.

131342352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131342352 is an abundant number, since it is smaller than the sum of its proper divisors (216239568).

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

131342352 is a wasteful number, since it uses less digits than its factorization.

131342352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66791 (or 66785 counting only the distinct ones).

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

The square root of 131342352 is about 11460.4691003466. The cubic root of 131342352 is about 508.3173456825.

Adding to 131342352 its reverse (253243131), we get a palindrome (384585483).

The spelling of 131342352 in words is "one hundred thirty-one million, three hundred forty-two thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 41 48 82 123 164 246 328 492 656 984 1968 66739 133478 200217 266956 400434 533912 800868 1067824 1601736 2736299 3203472 5472598 8208897 10945196 16417794 21890392 32835588 43780784 65671176 131342352