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131311323232080 = 24351732184147851
BaseRepresentation
bin11101110110110101001100…
…110001101011011101010000
3122012221020110220000112021220
4131312311030301223131100
5114202401042221411310
61143135331125445040
736441634000235445
oct3566651461533520
9565836426015256
10131311323232080
113892690175a262
1212889020570780
1358367b254a344
14245d7055179cc
15102aa9760a670
hex776d4cc6b750

131311323232080 has 80 divisors (see below), whose sum is σ = 431010108033984. Its totient is φ = 32956567398400.

The previous prime is 131311323232079. The next prime is 131311323232121. The reversal of 131311323232080 is 80232323113131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1313113232320802 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16092069846 + ... + 16092078005.

Almost surely, 2131311323232080 is an apocalyptic number.

131311323232080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131311323232080 is an abundant number, since it is smaller than the sum of its proper divisors (299698784801904).

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

131311323232080 is a wasteful number, since it uses less digits than its factorization.

131311323232080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32184147884 (or 32184147878 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 131311323232080 in words is "one hundred thirty-one trillion, three hundred eleven billion, three hundred twenty-three million, two hundred thirty-two thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 40 48 51 60 68 80 85 102 120 136 170 204 240 255 272 340 408 510 680 816 1020 1360 2040 4080 32184147851 64368295702 96552443553 128736591404 160920739255 193104887106 257473182808 321841478510 386209774212 482762217765 514946365616 547130513467 643682957020 772419548424 965524435530 1094261026934 1287365914040 1544839096848 1641391540401 1931048871060 2188522053868 2574731828080 2735652567335 3282783080802 3862097742120 4377044107736 5471305134670 6565566161604 7724195484240 8206957702005 8754088215472 10942610269340 13131132323208 16413915404010 21885220538680 26262264646416 32827830808020 43770441077360 65655661616040 131311323232080