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131833872534 = 23713218573383
BaseRepresentation
bin111101011000111101…
…0010100000010010110
3110121021201200121210210
41322301322110002112
54124443432410114
6140321425230250
712344652266340
oct1726172240226
9417251617723
10131833872534
1150a01869771
1221672a92386
13c57cac4400
146548c7c290
153668d5d259
hex1eb1e94096

131833872534 has 48 divisors (see below), whose sum is σ = 326297210112. Its totient is φ = 34769371104.

The previous prime is 131833872491. The next prime is 131833872539. The reversal of 131833872534 is 435278338131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131833872539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9279594 + ... + 9293789.

It is an arithmetic number, because the mean of its divisors is an integer number (6797858544).

Almost surely, 2131833872534 is an apocalyptic number.

131833872534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131833872534 is an abundant number, since it is smaller than the sum of its proper divisors (194463337578).

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

131833872534 is a wasteful number, since it uses less digits than its factorization.

131833872534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18573421 (or 18573408 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 131833872534 in words is "one hundred thirty-one billion, eight hundred thirty-three million, eight hundred seventy-two thousand, five hundred thirty-four".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 169 182 273 338 507 546 1014 1183 2366 3549 7098 18573383 37146766 55720149 111440298 130013681 241453979 260027362 390041043 482907958 724361937 780082086 1448723874 1690177853 3138901727 3380355706 5070533559 6277803454 9416705181 10141067118 18833410362 21972312089 43944624178 65916936267 131833872534