Base | Representation |
---|---|
bin | 100000101001111110… |
… | …1011000100000000000 |
3 | 20201000100100102012210 |
4 | 1001103331120200000 |
5 | 2122110241424200 |
6 | 52114424022120 |
7 | 5031560550255 |
oct | 1012375304000 |
9 | 221010312183 |
10 | 70128076800 |
11 | 27817520071 |
12 | 11711901940 |
13 | 67c7b3b942 |
14 | 3573a3542c |
15 | 1c569ae650 |
hex | 1053f58800 |
70128076800 has 288 divisors, whose sum is σ = 233339127840. Its totient is φ = 18579456000.
The previous prime is 70128076729. The next prime is 70128076841. The reversal of 70128076800 is 867082107.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25035400 + ... + 25038200.
It is an arithmetic number, because the mean of its divisors is an integer number (810205305).
Almost surely, 270128076800 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 70128076800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116669563920).
70128076800 is an abundant number, since it is smaller than the sum of its proper divisors (163211051040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70128076800 is a wasteful number, since it uses less digits than its factorization.
70128076800 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2999 (or 2974 counting only the distinct ones).
The product of its (nonzero) digits is 37632, while the sum is 39.
The spelling of 70128076800 in words is "seventy billion, one hundred twenty-eight million, seventy-six thousand, eight hundred".
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