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131376117747 = 37191097300149
BaseRepresentation
bin111101001011010100…
…0000111011111110011
3110120002211100021021210
41322112220013133303
54123024241231442
6140204154051203
712330423401310
oct1722650073763
9416084307253
10131376117747
1150797436826
1221565719b03
13c509010aa4
146504161d07
15363da8c19c
hex1e96a077f3

131376117747 has 32 divisors (see below), whose sum is σ = 210921408000. Its totient is φ = 71055836928.

The previous prime is 131376117703. The next prime is 131376117749. The reversal of 131376117747 is 747711673131.

It is not a de Polignac number, because 131376117747 - 26 = 131376117683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131376117696 and 131376117705.

It is not an unprimeable number, because it can be changed into a prime (131376117749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287629 + ... + 587777.

It is an arithmetic number, because the mean of its divisors is an integer number (6591294000).

Almost surely, 2131376117747 is an apocalyptic number.

131376117747 is a deficient number, since it is larger than the sum of its proper divisors (79545290253).

131376117747 is a wasteful number, since it uses less digits than its factorization.

131376117747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301275.

The product of its digits is 518616, while the sum is 48.

The spelling of 131376117747 in words is "one hundred thirty-one billion, three hundred seventy-six million, one hundred seventeen thousand, seven hundred forty-seven".

Divisors: 1 3 7 19 21 57 133 399 1097 3291 7679 20843 23037 62529 145901 300149 437703 900447 2101043 5702831 6303129 17108493 39919817 119759451 329263453 987790359 2304844171 6256005607 6914532513 18768016821 43792039249 131376117747