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131131033422 = 23198931740771
BaseRepresentation
bin111101000100000000…
…1001100011101001110
3110112110202011200210120
41322020001030131032
54122024021032142
6140124001045410
712321356251614
oct1721001143516
9415422150716
10131131033422
11506810602a4
12214b7626866
13c49a2cc98c
1464bd7a56b4
1536272c97ec
hex1e8804c74e

131131033422 has 64 divisors (see below), whose sum is σ = 280054713600. Its totient is φ = 40814357760.

The previous prime is 131131033409. The next prime is 131131033433. The reversal of 131131033422 is 224330131131.

It is a junction number, because it is equal to n+sod(n) for n = 131131033392 and 131131033401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3195897 + ... + 3236667.

It is an arithmetic number, because the mean of its divisors is an integer number (4375854900).

Almost surely, 2131131033422 is an apocalyptic number.

131131033422 is an abundant number, since it is smaller than the sum of its proper divisors (148923680178).

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

131131033422 is a wasteful number, since it uses less digits than its factorization.

131131033422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41201.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 131131033422 its reverse (224330131131), we get a palindrome (355461164553).

The spelling of 131131033422 in words is "one hundred thirty-one billion, one hundred thirty-one million, thirty-three thousand, four hundred twenty-two".

Divisors: 1 2 3 6 19 38 57 89 114 178 267 317 534 634 951 1691 1902 3382 5073 6023 10146 12046 18069 28213 36138 40771 56426 81542 84639 122313 169278 244626 536047 774649 1072094 1549298 1608141 2323947 3216282 3628619 4647894 7257238 10885857 12924407 21771714 25848814 38773221 68943761 77546442 137887522 206831283 245563733 413662566 491127466 736691199 1150272223 1473382398 2300544446 3450816669 6901633338 21855172237 43710344474 65565516711 131131033422