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131016731140 = 22533119791047
BaseRepresentation
bin111101000000100110…
…1001010101000000100
3110112011210002112112201
41322001031022220010
54121310240344030
6140104355124244
712315500561041
oct1720115125004
9415153075481
10131016731140
11506225902a9
12214852a3684
13c47c71c2a9
1464ac5301c8
15361c24c2ca
hex1e8134aa04

131016731140 has 24 divisors (see below), whose sum is σ = 275966373312. Its totient is φ = 52248361440.

The previous prime is 131016731119. The next prime is 131016731141. The reversal of 131016731140 is 41137610131.

It is a super-2 number, since 2×1310167311402 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131016731099 and 131016731108.

It is not an unprimeable number, because it can be changed into a prime (131016731141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9888904 + ... + 9902143.

It is an arithmetic number, because the mean of its divisors is an integer number (11498598888).

Almost surely, 2131016731140 is an apocalyptic number.

131016731140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131016731140 is an abundant number, since it is smaller than the sum of its proper divisors (144949642172).

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

131016731140 is a wasteful number, since it uses less digits than its factorization.

131016731140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19791387 (or 19791385 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 131016731140 in words is "one hundred thirty-one billion, sixteen million, seven hundred thirty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 331 662 1324 1655 3310 6620 19791047 39582094 79164188 98955235 197910470 395820940 6550836557 13101673114 26203346228 32754182785 65508365570 131016731140