Base | Representation |
---|---|
bin | 100100110100110001… |
… | …0110010010101011000 |
3 | 21120010020020020122200 |
4 | 1021221202302111120 |
5 | 2243424003404242 |
6 | 100155013450200 |
7 | 5466452040255 |
oct | 1115142622530 |
9 | 246106206580 |
10 | 79080138072 |
11 | 305a0749211 |
12 | 133ab940960 |
13 | 75c36a5b10 |
14 | 3b8292c42c |
15 | 20cc86c04c |
hex | 12698b2558 |
79080138072 has 96 divisors (see below), whose sum is σ = 230797803600. Its totient is φ = 24316800768.
The previous prime is 79080138041. The next prime is 79080138101. The reversal of 79080138072 is 27083108097.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1483579 + ... + 1535957.
Almost surely, 279080138072 is an apocalyptic number.
79080138072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 79080138072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115398901800).
79080138072 is an abundant number, since it is smaller than the sum of its proper divisors (151717665528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
79080138072 is a wasteful number, since it uses less digits than its factorization.
79080138072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 54017 (or 54010 counting only the distinct ones).
The product of its (nonzero) digits is 169344, while the sum is 45.
The spelling of 79080138072 in words is "seventy-nine billion, eighty million, one hundred thirty-eight thousand, seventy-two".
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