Base | Representation |
---|---|
bin | 100100111101000001… |
… | …1011110011101011000 |
3 | 21120211112110112210201 |
4 | 1021322003132131120 |
5 | 2300010412032442 |
6 | 100242310551544 |
7 | 5506354404400 |
oct | 1117203363530 |
9 | 246745415721 |
10 | 79357142872 |
11 | 30723046aa7 |
12 | 134686685b4 |
13 | 7638bb2097 |
14 | 3bab637800 |
15 | 20e6d377b7 |
hex | 127a0de758 |
79357142872 has 24 divisors (see below), whose sum is σ = 173087646660. Its totient is φ = 34010203920.
The previous prime is 79357142861. The next prime is 79357142873. The reversal of 79357142872 is 27824175397.
It is a super-2 number, since 2×793571428722 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (79357142873) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101220454 + ... + 101221237.
Almost surely, 279357142872 is an apocalyptic number.
It is an amenable number.
79357142872 is an abundant number, since it is smaller than the sum of its proper divisors (93730503788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
79357142872 is a wasteful number, since it uses less digits than its factorization.
79357142872 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 202441711 (or 202441700 counting only the distinct ones).
The product of its digits is 5927040, while the sum is 55.
The spelling of 79357142872 in words is "seventy-nine billion, three hundred fifty-seven million, one hundred forty-two thousand, eight hundred seventy-two".
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