Base | Representation |
---|---|
bin | 101010001000010111… |
… | …1101010001001000000 |
3 | 22122112101010111122200 |
4 | 1110100233222021000 |
5 | 2440243130221143 |
6 | 105321434233200 |
7 | 6352026603612 |
oct | 1242057521100 |
9 | 278471114580 |
10 | 90475242048 |
11 | 35408a08514 |
12 | 1564bb85800 |
13 | 86bb4193a9 |
14 | 454408adb2 |
15 | 2547e541d3 |
hex | 1510bea240 |
90475242048 has 84 divisors (see below), whose sum is σ = 270606243648. Its totient is φ = 28847174400.
The previous prime is 90475242041. The next prime is 90475242059. The reversal of 90475242048 is 84024257409.
It is a junction number, because it is equal to n+sod(n) for n = 90475241994 and 90475242012.
It is not an unprimeable number, because it can be changed into a prime (90475242041) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3401428 + ... + 3427923.
Almost surely, 290475242048 is an apocalyptic number.
It is an amenable number.
90475242048 is an abundant number, since it is smaller than the sum of its proper divisors (180131001600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90475242048 is a wasteful number, since it uses less digits than its factorization.
90475242048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6829392 (or 6829379 counting only the distinct ones).
The product of its (nonzero) digits is 645120, while the sum is 45.
The spelling of 90475242048 in words is "ninety billion, four hundred seventy-five million, two hundred forty-two thousand, forty-eight".
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