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131122310 = 25112351827
BaseRepresentation
bin1111101000011…
…00010010000110
3100010201200222212
413310030102012
5232031403220
621002223422
73151343534
oct764142206
9303650885
10131122310
1168019150
1237ab4b72
132121c587
14135b3154
15b7a10c5
hex7d0c486

131122310 has 32 divisors (see below), whose sum is σ = 268676352. Its totient is φ = 45606880.

The previous prime is 131122297. The next prime is 131122337. The reversal of 131122310 is 13221131.

It is a super-2 number, since 2×1311223102 = 34386120359472200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23384 + ... + 28443.

It is an arithmetic number, because the mean of its divisors is an integer number (8396136).

Almost surely, 2131122310 is an apocalyptic number.

131122310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131122310 is an abundant number, since it is smaller than the sum of its proper divisors (137554042).

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

131122310 is a wasteful number, since it uses less digits than its factorization.

131122310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51868.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 131122310 is about 11450.8650328261. The cubic root of 131122310 is about 508.0333202977.

Adding to 131122310 its reverse (13221131), we get a palindrome (144343441).

The spelling of 131122310 in words is "one hundred thirty-one million, one hundred twenty-two thousand, three hundred ten".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 230 253 506 1265 2530 51827 103654 259135 518270 570097 1140194 1192021 2384042 2850485 5700970 5960105 11920210 13112231 26224462 65561155 131122310