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131240106466 = 27831094432339
BaseRepresentation
bin111101000111010000…
…1010001100111100010
3110112202100102011212221
41322032201101213202
54122234431401331
6140142454541254
712324152333050
oct1721641214742
9415670364787
10131240106466
1150727689507
122152806782a
13c4b6a9c141
1464d00791d0
153631b72711
hex1e8e8519e2

131240106466 has 64 divisors (see below), whose sum is σ = 230399769600. Its totient is φ = 54910529856.

The previous prime is 131240106449. The next prime is 131240106521. The reversal of 131240106466 is 664601042131.

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, 56108325 + ... + 56110663.

It is an arithmetic number, because the mean of its divisors is an integer number (3599996400).

Almost surely, 2131240106466 is an apocalyptic number.

131240106466 is a deficient number, since it is larger than the sum of its proper divisors (99159663134).

131240106466 is a wasteful number, since it uses less digits than its factorization.

131240106466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983.

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 131240106466 its reverse (664601042131), we get a palindrome (795841148597).

The spelling of 131240106466 in words is "one hundred thirty-one billion, two hundred forty million, one hundred six thousand, four hundred sixty-six".

Divisors: 1 2 7 14 83 109 166 218 443 581 763 886 1162 1526 2339 3101 4678 6202 9047 16373 18094 32746 36769 48287 63329 73538 96574 126658 194137 254951 257383 338009 388274 509902 514766 676018 1036177 1358959 1784657 2072354 2717918 3569314 4007821 7253239 8015642 14506478 21160933 28054747 42321866 56109494 86002691 112943293 148126531 172005382 225886586 296253062 602018837 790603051 1204037674 1581206102 9374293319 18748586638 65620053233 131240106466