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131507664167 = 111723612511997
BaseRepresentation
bin111101001111001110…
…1111011010100100111
3110120102222212112001102
41322132131323110213
54123311430223132
6140225213350315
712333611462465
oct1723635732447
9416388775042
10131507664167
1150854714580
12215a179839b
13c52a34b3c9
146517805835
15364a3c3c62
hex1e9e77b527

131507664167 has 64 divisors (see below), whose sum is σ = 161827642368. Its totient is φ = 105388800000.

The previous prime is 131507664161. The next prime is 131507664191. The reversal of 131507664167 is 761466705131.

It is not a de Polignac number, because 131507664167 - 230 = 130433922343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131507664161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 65851613 + ... + 65853609.

It is an arithmetic number, because the mean of its divisors is an integer number (2528556912).

Almost surely, 2131507664167 is an apocalyptic number.

131507664167 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

131507664167 is a deficient number, since it is larger than the sum of its proper divisors (30319978201).

131507664167 is a wasteful number, since it uses less digits than its factorization.

131507664167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 131507664167 in words is "one hundred thirty-one billion, five hundred seven million, six hundred sixty-four thousand, one hundred sixty-seven".

Divisors: 1 11 17 23 61 187 251 253 391 671 1037 1403 1997 2761 4267 4301 5773 11407 15311 15433 21967 23851 33949 45931 46937 63503 98141 121817 168421 260287 262361 352153 373439 501247 505241 780827 1079551 1339987 2070889 2801791 2863157 3873683 5513717 5986601 8521199 8589097 11528681 22779779 30576067 30819701 47630447 65852611 93733189 126815491 195987577 336336737 519793139 523934917 703249541 2155863347 5717724529 7735744951 11955242197 131507664167