Base | Representation |
---|---|
bin | 1010101111010… |
… | …00010111110101 |
3 | 20021111120120100 |
4 | 11113220113311 |
5 | 141030041012 |
6 | 12534424313 |
7 | 2142450054 |
oct | 527502765 |
9 | 207446510 |
10 | 90080757 |
11 | 46937008 |
12 | 26202099 |
13 | 1587c930 |
14 | bd6c39b |
15 | 7d958dc |
hex | 55e85f5 |
90080757 has 48 divisors (see below), whose sum is σ = 146764800. Its totient is φ = 52859520.
The previous prime is 90080747. The next prime is 90080779. The reversal of 90080757 is 75708009.
It is not a de Polignac number, because 90080757 - 26 = 90080693 is a prime.
It is a super-2 number, since 2×900807572 = 16229085563386098, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90080707) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 471532 + ... + 471722.
It is an arithmetic number, because the mean of its divisors is an integer number (3057600).
Almost surely, 290080757 is an apocalyptic number.
It is an amenable number.
90080757 is a deficient number, since it is larger than the sum of its proper divisors (56684043).
90080757 is a wasteful number, since it uses less digits than its factorization.
90080757 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 378 (or 375 counting only the distinct ones).
The product of its (nonzero) digits is 17640, while the sum is 36.
The square root of 90080757 is about 9491.0882937627. The cubic root of 90080757 is about 448.2744734006.
The spelling of 90080757 in words is "ninety million, eighty thousand, seven hundred fifty-seven".
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