Base | Representation |
---|---|
bin | 10001100000101000… |
… | …010000010110111000 |
3 | 1210112021110112000210 |
4 | 101200220100112320 |
5 | 302001031102210 |
6 | 12345335231120 |
7 | 1233623105121 |
oct | 214050202670 |
9 | 53467415023 |
10 | 18801034680 |
11 | 7a7876a69a |
12 | 37885184a0 |
13 | 1a081863bc |
14 | ca4d85048 |
15 | 750886e20 |
hex | 460a105b8 |
18801034680 has 48 divisors (see below), whose sum is σ = 56407610520. Its totient is φ = 5013208704.
The previous prime is 18801034669. The next prime is 18801034691. The reversal of 18801034680 is 8643010881.
It is an interprime number because it is at equal distance from previous prime (18801034669) and next prime (18801034691).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1495782 + ... + 1508298.
Almost surely, 218801034680 is an apocalyptic number.
18801034680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
18801034680 is an abundant number, since it is smaller than the sum of its proper divisors (37606575840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18801034680 is an frugal number, since it uses more digits than its factorization.
18801034680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25048 (or 12527 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 39.
The spelling of 18801034680 in words is "eighteen billion, eight hundred one million, thirty-four thousand, six hundred eighty".
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