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131444250245 = 5711341413637
BaseRepresentation
bin111101001101010110…
…0000001011010000101
3110120021120112202111122
41322122230001122011
54123144212001440
6140215030243325
712332211456320
oct1723254013205
9416246482448
10131444250245
1150821941780
12215844b6545
13c51a177589
14650d2197b7
153644a497b5
hex1e9ab01685

131444250245 has 16 divisors (see below), whose sum is σ = 196654255488. Its totient is φ = 81939272640.

The previous prime is 131444250239. The next prime is 131444250283. The reversal of 131444250245 is 542052444131.

It is a happy number.

It is not a de Polignac number, because 131444250245 - 26 = 131444250181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170706434 + ... + 170707203.

It is an arithmetic number, because the mean of its divisors is an integer number (12290890968).

Almost surely, 2131444250245 is an apocalyptic number.

It is an amenable number.

131444250245 is a deficient number, since it is larger than the sum of its proper divisors (65210005243).

131444250245 is a wasteful number, since it uses less digits than its factorization.

131444250245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341413660.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 131444250245 its reverse (542052444131), we get a palindrome (673496694376).

The spelling of 131444250245 in words is "one hundred thirty-one billion, four hundred forty-four million, two hundred fifty thousand, two hundred forty-five".

Divisors: 1 5 7 11 35 55 77 385 341413637 1707068185 2389895459 3755550007 11949477295 18777750035 26288850049 131444250245