Base | Representation |
---|---|
bin | 10001100010011010… |
… | …001000110001110100 |
3 | 1210121100122020011020 |
4 | 101202122020301310 |
5 | 302031201404202 |
6 | 12352323141140 |
7 | 1234434623154 |
oct | 214232106164 |
9 | 53540566136 |
10 | 18830888052 |
11 | 7a935aa9a9 |
12 | 37965147b0 |
13 | 1a11409712 |
14 | ca8d16764 |
15 | 7532d25bc |
hex | 462688c74 |
18830888052 has 12 divisors (see below), whose sum is σ = 43938738816. Its totient is φ = 6276962680.
The previous prime is 18830888039. The next prime is 18830888059. The reversal of 18830888052 is 25088803881.
It is a tau number, because it is divible by the number of its divisors (12).
It is a junction number, because it is equal to n+sod(n) for n = 18830887986 and 18830888004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18830888059) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784620324 + ... + 784620347.
It is an arithmetic number, because the mean of its divisors is an integer number (3661561568).
Almost surely, 218830888052 is an apocalyptic number.
18830888052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
18830888052 is an abundant number, since it is smaller than the sum of its proper divisors (25107850764).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18830888052 is a wasteful number, since it uses less digits than its factorization.
18830888052 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1569240678 (or 1569240676 counting only the distinct ones).
The product of its (nonzero) digits is 983040, while the sum is 51.
The spelling of 18830888052 in words is "eighteen billion, eight hundred thirty million, eight hundred eighty-eight thousand, fifty-two".
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