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131263755453 = 32421103933343
BaseRepresentation
bin111101000111111101…
…1011111010010111101
3110112210222220200012100
41322033323133102331
54122312010133303
6140145101455313
712324560340405
oct1721773372275
9415728820170
10131263755453
1150739a71326
1221533b71539
13c4bb95c41c
1464d3273805
153633c948a3
hex1e8fedf4bd

131263755453 has 24 divisors (see below), whose sum is σ = 190242191360. Its totient is φ = 87214669920.

The previous prime is 131263755449. The next prime is 131263755461. The reversal of 131263755453 is 354557362131.

131263755453 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 637 + 5 + 5 + 4 + 5 + 3 = 666.

It is not a de Polignac number, because 131263755453 - 22 = 131263755449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131263755399 and 131263755408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131263759453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3920100 + ... + 3953442.

Almost surely, 2131263755453 is an apocalyptic number.

It is an amenable number.

131263755453 is a deficient number, since it is larger than the sum of its proper divisors (58978435907).

131263755453 is a wasteful number, since it uses less digits than its factorization.

131263755453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34809 (or 34806 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 45.

The spelling of 131263755453 in words is "one hundred thirty-one billion, two hundred sixty-three million, seven hundred fifty-five thousand, four hundred fifty-three".

Divisors: 1 3 9 421 1039 1263 3117 3789 9351 33343 100029 300087 437419 1312257 3936771 14037403 34643377 42112209 103930131 126336627 311790393 14584861717 43754585151 131263755453