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131023748090 = 2513102374809
BaseRepresentation
bin111101000000110011…
…1111011101111111010
3110112012021022000222202
41322001213323233322
54121314034414330
6140105205350202
712315614324444
oct1720147735772
9415167260882
10131023748090
1150626543234
1221487708362
13c481008131
1464ad439494
15361cb86445
hex1e819fbbfa

131023748090 has 8 divisors (see below), whose sum is σ = 235842746580. Its totient is φ = 52409499232.

The previous prime is 131023748059. The next prime is 131023748099. The reversal of 131023748090 is 90847320131.

It can be written as a sum of positive squares in 2 ways, for example, as 126018610081 + 5005138009 = 354991^2 + 70747^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (131023748099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6551187395 + ... + 6551187414.

Almost surely, 2131023748090 is an apocalyptic number.

131023748090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131023748090 is a deficient number, since it is larger than the sum of its proper divisors (104818998490).

131023748090 is a wasteful number, since it uses less digits than its factorization.

131023748090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13102374816.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 131023748090 in words is "one hundred thirty-one billion, twenty-three million, seven hundred forty-eight thousand, ninety".

Divisors: 1 2 5 10 13102374809 26204749618 65511874045 131023748090