Base | Representation |
---|---|
bin | 101001111100001010… |
… | …0100010111010010000 |
3 | 22121110211002111122220 |
4 | 1103320110202322100 |
5 | 2433423230400420 |
6 | 105213035501040 |
7 | 6335622650211 |
oct | 1237024427220 |
9 | 277424074586 |
10 | 90065481360 |
11 | 35218686218 |
12 | 155568b7780 |
13 | 865456b14a |
14 | 45058a5408 |
15 | 2521eb3840 |
hex | 14f8522e90 |
90065481360 has 80 divisors (see below), whose sum is σ = 279299427264. Its totient is φ = 24009166336.
The previous prime is 90065481353. The next prime is 90065481371. The reversal of 90065481360 is 6318456009.
It is a tau number, because it is divible by the number of its divisors (80).
It is a super-2 number, since 2×900654813602 (a number of 23 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647794 + ... + 774446.
Almost surely, 290065481360 is an apocalyptic number.
It is an amenable number.
90065481360 is an abundant number, since it is smaller than the sum of its proper divisors (189233945904).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90065481360 is a wasteful number, since it uses less digits than its factorization.
90065481360 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 129632 (or 129626 counting only the distinct ones).
The product of its (nonzero) digits is 155520, while the sum is 42.
The spelling of 90065481360 in words is "ninety billion, sixty-five million, four hundred eighty-one thousand, three hundred sixty".
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