Base | Representation |
---|---|
bin | 111101000111110001… |
… | …1001100010001000000 |
3 | 110112210112221002000110 |
4 | 1322033203030101000 |
5 | 4122303342323143 |
6 | 140144313151320 |
7 | 12324452241615 |
oct | 1721743142100 |
9 | 415715832013 |
10 | 131257386048 |
11 | 50736410958 |
12 | 215319bb540 |
13 | c4ba53c249 |
14 | 64d249650c |
15 | 3633437533 |
hex | 1e8f8cc440 |
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".
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