Base | Representation |
---|---|
bin | 100011111111… |
… | …0100111011000 |
3 | 1022111121222121 |
4 | 1013332213120 |
5 | 14312244241 |
6 | 1512231024 |
7 | 316244530 |
oct | 107764730 |
9 | 38447877 |
10 | 18868696 |
11 | a718370 |
12 | 639b474 |
13 | 3ba8512 |
14 | 27124c0 |
15 | 19caad1 |
hex | 11fe9d8 |
18868696 has 32 divisors (see below), whose sum is σ = 44110080. Its totient is φ = 7351200.
The previous prime is 18868693. The next prime is 18868697. The reversal of 18868696 is 69686881.
It is a super-3 number, since 3×188686963 (a number of 23 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18868693) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14700 + ... + 15931.
It is an arithmetic number, because the mean of its divisors is an integer number (1378440).
Almost surely, 218868696 is an apocalyptic number.
It is an amenable number.
18868696 is an abundant number, since it is smaller than the sum of its proper divisors (25241384).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18868696 is a wasteful number, since it uses less digits than its factorization.
18868696 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30655 (or 30651 counting only the distinct ones).
The product of its digits is 995328, while the sum is 52.
The square root of 18868696 is about 4343.8112297843. The cubic root of 18868696 is about 266.2240560436.
The spelling of 18868696 in words is "eighteen million, eight hundred sixty-eight thousand, six hundred ninety-six".
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