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131257386048 = 263683632219
BaseRepresentation
bin111101000111110001…
…1001100010001000000
3110112210112221002000110
41322033203030101000
54122303342323143
6140144313151320
712324452241615
oct1721743142100
9415715832013
10131257386048
1150736410958
12215319bb540
13c4ba53c249
1464d249650c
153633437533
hex1e8f8cc440

131257386048 has 28 divisors (see below), whose sum is σ = 347285167760. Its totient is φ = 43752461952.

The previous prime is 131257386041. The next prime is 131257386061. The reversal of 131257386048 is 840683752131.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 131257385988 and 131257386006.

It is not an unprimeable number, because it can be changed into a prime (131257386041) 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, 341815918 + ... + 341816301.

Almost surely, 2131257386048 is an apocalyptic number.

It is an amenable number.

131257386048 is an abundant number, since it is smaller than the sum of its proper divisors (216027781712).

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

131257386048 is an equidigital number, since it uses as much as digits as its factorization.

131257386048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683632234 (or 683632224 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 131257386048 in words is "one hundred thirty-one billion, two hundred fifty-seven million, three hundred eighty-six thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 683632219 1367264438 2050896657 2734528876 4101793314 5469057752 8203586628 10938115504 16407173256 21876231008 32814346512 43752462016 65628693024 131257386048