Base | Representation |
---|---|
bin | 10001010101100001… |
… | …011111001100000000 |
3 | 1210001021212022001020 |
4 | 101111201133030000 |
5 | 301110331223130 |
6 | 12315041505440 |
7 | 1226201301402 |
oct | 212541371400 |
9 | 53037768036 |
10 | 18614711040 |
11 | 7992578a12 |
12 | 3736042280 |
13 | 19a86aa123 |
14 | c88322b72 |
15 | 73e32ee10 |
hex | 45585f300 |
18614711040 has 144 divisors (see below), whose sum is σ = 59761147488. Its totient is φ = 4938006528.
The previous prime is 18614711029. The next prime is 18614711053. The reversal of 18614711040 is 4011741681.
It is a junction number, because it is equal to n+sod(n) for n = 18614710992 and 18614711010.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728562 + ... + 753678.
Almost surely, 218614711040 is an apocalyptic number.
18614711040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18614711040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29880573744).
18614711040 is an abundant number, since it is smaller than the sum of its proper divisors (41146436448).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18614711040 is a wasteful number, since it uses less digits than its factorization.
18614711040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25334 (or 25320 counting only the distinct ones).
The product of its (nonzero) digits is 5376, while the sum is 33.
The spelling of 18614711040 in words is "eighteen billion, six hundred fourteen million, seven hundred eleven thousand, forty".
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