Base | Representation |
---|---|
bin | 101010010000011100… |
… | …1000011010110110000 |
3 | 22200020020212112220010 |
4 | 1110200321003112300 |
5 | 2441322002440310 |
6 | 105404352414520 |
7 | 6361526315031 |
oct | 1244071032660 |
9 | 280206775803 |
10 | 90746140080 |
11 | 35537915192 |
12 | 15706847440 |
13 | 8732597b9b |
14 | 456c046a88 |
15 | 2561b15320 |
hex | 1520e435b0 |
90746140080 has 160 divisors (see below), whose sum is σ = 298539177984. Its totient is φ = 22723637248.
The previous prime is 90746140021. The next prime is 90746140099. The reversal of 90746140080 is 8004164709.
It is a happy number.
It is a Cunningham number, because it is equal to 3012412-1.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1782337 + ... + 1832543.
Almost surely, 290746140080 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 90746140080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149269588992).
90746140080 is an abundant number, since it is smaller than the sum of its proper divisors (207793037904).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90746140080 is a wasteful number, since it uses less digits than its factorization.
90746140080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50683 (or 50677 counting only the distinct ones).
The product of its (nonzero) digits is 48384, while the sum is 39.
The spelling of 90746140080 in words is "ninety billion, seven hundred forty-six million, one hundred forty thousand, eighty".
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