Base | Representation |
---|---|
bin | 1000011111111000101010… |
… | …10100110011011110000010 |
3 | 2110011112101011022000120212 |
4 | 10033330111110303132002 |
5 | 4422140013140331010 |
6 | 103425012203034122 |
7 | 3636101061110630 |
oct | 417742524633602 |
9 | 73145334260525 |
10 | 18687760480130 |
11 | 5a55486669475 |
12 | 211999120b942 |
13 | a5732c541661 |
14 | 4886c7346350 |
15 | 2261a167b505 |
hex | 10ff15533782 |
18687760480130 has 64 divisors (see below), whose sum is σ = 39688134727680. Its totient is φ = 6199823462400.
The previous prime is 18687760480057. The next prime is 18687760480133. The reversal of 18687760480130 is 3108406778681.
It is a self number, because there is not a number n which added to its sum of digits gives 18687760480130.
It is not an unprimeable number, because it can be changed into a prime (18687760480133) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18252656 + ... + 19249284.
It is an arithmetic number, because the mean of its divisors is an integer number (620127105120).
Almost surely, 218687760480130 is an apocalyptic number.
18687760480130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18687760480130 is an abundant number, since it is smaller than the sum of its proper divisors (21000374247550).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18687760480130 is a wasteful number, since it uses less digits than its factorization.
18687760480130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1005315.
The product of its (nonzero) digits is 10838016, while the sum is 59.
The spelling of 18687760480130 in words is "eighteen trillion, six hundred eighty-seven billion, seven hundred sixty million, four hundred eighty thousand, one hundred thirty".
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