Search a number
-
+
131137386 = 23118718413
BaseRepresentation
bin1111101000011…
…11111101101010
3100010202110200020
413310033331222
5232032344021
621002421310
73151435512
oct764177552
9303673606
10131137386
1168029506
1237b01836
13212263b3
14135b8842
15b7a57c6
hex7d0ff6a

131137386 has 16 divisors (see below), whose sum is σ = 262509984. Its totient is φ = 43673264.

The previous prime is 131137339. The next prime is 131137399. The reversal of 131137386 is 683731131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085 + ... + 16328.

It is an arithmetic number, because the mean of its divisors is an integer number (16406874).

Almost surely, 2131137386 is an apocalyptic number.

131137386 is an abundant number, since it is smaller than the sum of its proper divisors (131372598).

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

131137386 is a wasteful number, since it uses less digits than its factorization.

131137386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19605.

The product of its digits is 9072, while the sum is 33.

The square root of 131137386 is about 11451.5233047835. The cubic root of 131137386 is about 508.0527902029.

The spelling of 131137386 in words is "one hundred thirty-one million, one hundred thirty-seven thousand, three hundred eighty-six".

Divisors: 1 2 3 6 1187 2374 3561 7122 18413 36826 55239 110478 21856231 43712462 65568693 131137386