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131445057111 = 31712637203953
BaseRepresentation
bin111101001101010111…
…1000110011001010111
3110120021122001202022120
41322122233012121113
54123144413311421
6140215055431023
712332221356564
oct1723257063127
9416248052276
10131445057111
1150822342a05
1221584825473
13c51a39a904
14650d38986b
153644b588c6
hex1e9abc6657

131445057111 has 16 divisors (see below), whose sum is σ = 185585086944. Its totient is φ = 82468399104.

The previous prime is 131445057089. The next prime is 131445057131. The reversal of 131445057111 is 111750544131.

It is not a de Polignac number, because 131445057111 - 27 = 131445056983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131445057131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542511 + ... + 746463.

It is an arithmetic number, because the mean of its divisors is an integer number (11599067934).

Almost surely, 2131445057111 is an apocalyptic number.

131445057111 is a deficient number, since it is larger than the sum of its proper divisors (54140029833).

131445057111 is a wasteful number, since it uses less digits than its factorization.

131445057111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216610.

The product of its (nonzero) digits is 8400, while the sum is 33.

The spelling of 131445057111 in words is "one hundred thirty-one billion, four hundred forty-five million, fifty-seven thousand, one hundred eleven".

Divisors: 1 3 17 51 12637 37911 203953 214829 611859 644487 3467201 10401603 2577354061 7732062183 43815019037 131445057111