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13131202433144 = 2310636315432061
BaseRepresentation
bin1011111100010101100010…
…1010000001000001111000
31201111022221002000201002012
42333011120222001001320
53210120200310330034
643532220252025052
72523461303026625
oct277053052010170
951438832021065
1013131202433144
114202a03497724
121580ab9162188
137433619c6a43
143357a709534c
1517b88cd66cce
hexbf158a81078

13131202433144 has 16 divisors (see below), whose sum is σ = 24621237638520. Its totient is φ = 6565539062880.

The previous prime is 13131202433119. The next prime is 13131202433149. The reversal of 13131202433144 is 44133420213131.

It is a self number, because there is not a number n which added to its sum of digits gives 13131202433144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131202433149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6865127 + ... + 8566934.

Almost surely, 213131202433144 is an apocalyptic number.

It is an amenable number.

13131202433144 is a deficient number, since it is larger than the sum of its proper divisors (11490035205376).

13131202433144 is a wasteful number, since it uses less digits than its factorization.

13131202433144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15538430 (or 15538426 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 13131202433144 its reverse (44133420213131), we get a palindrome (57264622646275).

The spelling of 13131202433144 in words is "thirteen trillion, one hundred thirty-one billion, two hundred two million, four hundred thirty-three thousand, one hundred forty-four".

Divisors: 1 2 4 8 106363 212726 425452 850904 15432061 30864122 61728244 123456488 1641400304143 3282800608286 6565601216572 13131202433144