Base | Representation |
---|---|
bin | 101010000010111011… |
… | …1110100100011001001 |
3 | 22122001122220010201220 |
4 | 1110011313310203021 |
5 | 2434404431114312 |
6 | 105251400432253 |
7 | 6344353261332 |
oct | 1240567644311 |
9 | 278048803656 |
10 | 90292832457 |
11 | 35324a4a493 |
12 | 155baa78689 |
13 | 868c6b0819 |
14 | 4527b67289 |
15 | 2536e21c8c |
hex | 1505df48c9 |
90292832457 has 8 divisors (see below), whose sum is σ = 120560249280. Its totient is φ = 60110318640.
The previous prime is 90292832437. The next prime is 90292832537. The reversal of 90292832457 is 75423829209.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 90292832457 - 211 = 90292830409 is a prime.
It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (90292832407) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21223269 + ... + 21227522.
It is an arithmetic number, because the mean of its divisors is an integer number (15070031160).
Almost surely, 290292832457 is an apocalyptic number.
It is an amenable number.
90292832457 is a deficient number, since it is larger than the sum of its proper divisors (30267416823).
90292832457 is a wasteful number, since it uses less digits than its factorization.
90292832457 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42451503.
The product of its (nonzero) digits is 2177280, while the sum is 51.
The spelling of 90292832457 in words is "ninety billion, two hundred ninety-two million, eight hundred thirty-two thousand, four hundred fifty-seven".
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