Base | Representation |
---|---|
bin | 10010101101010010… |
… | …111011101111100100 |
3 | 1220211220210002210021 |
4 | 102231102323233210 |
5 | 312114321301402 |
6 | 13121124204524 |
7 | 1310532104116 |
oct | 225522735744 |
9 | 56756702707 |
10 | 20087290852 |
11 | 857882aa22 |
12 | 3a87239744 |
13 | 1b817bb725 |
14 | d87b293b6 |
15 | 7c875ed37 |
hex | 4ad4bbbe4 |
20087290852 has 12 divisors (see below), whose sum is σ = 35154439936. Its totient is φ = 10043165160.
The previous prime is 20087290807. The next prime is 20087290871. The reversal of 20087290852 is 25809278002.
It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 20087290799 and 20087290808.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15924 + ... + 201067.
Almost surely, 220087290852 is an apocalyptic number.
It is an amenable number.
20087290852 is a deficient number, since it is larger than the sum of its proper divisors (15067149084).
20087290852 is a wasteful number, since it uses less digits than its factorization.
20087290852 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 240138 (or 240136 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 43.
The spelling of 20087290852 in words is "twenty billion, eighty-seven million, two hundred ninety thousand, eight hundred fifty-two".
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