Base | Representation |
---|---|
bin | 110101011111001010… |
… | …111011010011111110 |
3 | 12111020111002001011000 |
4 | 311133022323103332 |
5 | 1420104401243000 |
6 | 42214503311130 |
7 | 4102125531543 |
oct | 653712732376 |
9 | 174214061130 |
10 | 57431274750 |
11 | 223a1503833 |
12 | b16974b4a6 |
13 | 5553517515 |
14 | 2acb672bca |
15 | 1761e9e000 |
hex | d5f2bb4fe |
57431274750 has 64 divisors (see below), whose sum is σ = 159276087360. Its totient is φ = 15315004800.
The previous prime is 57431274679. The next prime is 57431274751. The reversal of 57431274750 is 5747213475.
57431274750 is a `hidden beast` number, since 57 + 4 + 3 + 127 + 475 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a junction number, because it is equal to n+sod(n) for n = 57431274696 and 57431274705.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57431274751) 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, 4247419 + ... + 4260918.
It is an arithmetic number, because the mean of its divisors is an integer number (2488688865).
Almost surely, 257431274750 is an apocalyptic number.
57431274750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.
57431274750 is an abundant number, since it is smaller than the sum of its proper divisors (101844812610).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57431274750 is a wasteful number, since it uses less digits than its factorization.
57431274750 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8508363 (or 8508347 counting only the distinct ones).
The product of its (nonzero) digits is 823200, while the sum is 45.
The spelling of 57431274750 in words is "fifty-seven billion, four hundred thirty-one million, two hundred seventy-four thousand, seven hundred fifty".
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