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131838133774 = 21953478913669
BaseRepresentation
bin111101011001000101…
…0100100011000001110
3110121022000201010010111
41322302022210120032
54130001030240044
6140322100430234
712345033434644
oct1726212443016
9417260633114
10131838133774
1150a0420a256
12216743a837a
13c580956b59
14654966b194
153669400b34
hex1eb22a460e

131838133774 has 32 divisors (see below), whose sum is σ = 212152932000. Its totient is φ = 61254071424.

The previous prime is 131838133759. The next prime is 131838133781. The reversal of 131838133774 is 477331838131.

It is a super-2 number, since 2×1318381337742 (a number of 23 digits) contains 22 as substring.

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, 9638212 + ... + 9651880.

It is an arithmetic number, because the mean of its divisors is an integer number (6629779125).

Almost surely, 2131838133774 is an apocalyptic number.

131838133774 is a deficient number, since it is larger than the sum of its proper divisors (80314798226).

131838133774 is a wasteful number, since it uses less digits than its factorization.

131838133774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18532.

The product of its digits is 1016064, while the sum is 49.

The spelling of 131838133774 in words is "one hundred thirty-one billion, eight hundred thirty-eight million, one hundred thirty-three thousand, seven hundred seventy-four".

Divisors: 1 2 19 38 53 106 1007 2014 4789 9578 13669 27338 90991 181982 253817 259711 507634 519422 724457 1448914 4822523 9645046 13764683 27529366 65460841 130921682 1243755979 2487511958 3469424573 6938849146 65919066887 131838133774