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131137338 = 2356338821
BaseRepresentation
bin1111101000011…
…11111100111010
3100010202110121110
413310033330322
5232032343323
621002421150
73151435413
oct764177472
9303673543
10131137338
1168029472
1237b017b6
1321226377
14135b880a
15b7a5793
hex7d0ff3a

131137338 has 16 divisors (see below), whose sum is σ = 262747296. Its totient is φ = 43633680.

The previous prime is 131137327. The next prime is 131137339. The reversal of 131137338 is 833731131.

It is not an unprimeable number, because it can be changed into a prime (131137339) 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, 16033 + ... + 22788.

It is an arithmetic number, because the mean of its divisors is an integer number (16421706).

Almost surely, 2131137338 is an apocalyptic number.

131137338 is an abundant number, since it is smaller than the sum of its proper divisors (131609958).

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

131137338 is a wasteful number, since it uses less digits than its factorization.

131137338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39389.

The product of its digits is 4536, while the sum is 30.

The square root of 131137338 is about 11451.5212089923. The cubic root of 131137338 is about 508.0527282156.

Adding to 131137338 its reverse (833731131), we get a palindrome (964868469).

The spelling of 131137338 in words is "one hundred thirty-one million, one hundred thirty-seven thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 563 1126 1689 3378 38821 77642 116463 232926 21856223 43712446 65568669 131137338