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131120022 = 231110971811
BaseRepresentation
bin1111101000010…
…11101110010110
3100010201120212010
413310023232112
5232031320042
621002205050
73151334055
oct764135626
9303646763
10131120022
1168017460
1237ab3786
132121b517
14135b239c
15b7a059c
hex7d0bb96

131120022 has 32 divisors (see below), whose sum is σ = 286498944. Its totient is φ = 39675200.

The previous prime is 131120021. The next prime is 131120053. The reversal of 131120022 is 220021131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131120021) 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, 71497 + ... + 73307.

It is an arithmetic number, because the mean of its divisors is an integer number (8953092).

Almost surely, 2131120022 is an apocalyptic number.

131120022 is an abundant number, since it is smaller than the sum of its proper divisors (155378922).

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

131120022 is a wasteful number, since it uses less digits than its factorization.

131120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 131120022 is about 11450.7651272742. The cubic root of 131120022 is about 508.0303653290.

Adding to 131120022 its reverse (220021131), we get a palindrome (351141153).

The spelling of 131120022 in words is "one hundred thirty-one million, one hundred twenty thousand, twenty-two".

Divisors: 1 2 3 6 11 22 33 66 1097 1811 2194 3291 3622 5433 6582 10866 12067 19921 24134 36201 39842 59763 72402 119526 1986667 3973334 5960001 11920002 21853337 43706674 65560011 131120022