Base | Representation |
---|---|
bin | 100100000110… |
… | …0100111110110 |
3 | 1022121112200120 |
4 | 1020030213312 |
5 | 14321113240 |
6 | 1513352410 |
7 | 316604022 |
oct | 110144766 |
9 | 38545616 |
10 | 18926070 |
11 | a757489 |
12 | 6408706 |
13 | 3bc8677 |
14 | 2729382 |
15 | 19dcad0 |
hex | 120c9f6 |
18926070 has 32 divisors (see below), whose sum is σ = 45537120. Its totient is φ = 5034240.
The previous prime is 18926069. The next prime is 18926077. The reversal of 18926070 is 7062981.
It is a super-2 number, since 2×189260702 = 716392251289800, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18926077) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22416 + ... + 23244.
It is an arithmetic number, because the mean of its divisors is an integer number (1423035).
Almost surely, 218926070 is an apocalyptic number.
18926070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18926070 is an abundant number, since it is smaller than the sum of its proper divisors (26611050).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18926070 is a wasteful number, since it uses less digits than its factorization.
18926070 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1600.
The product of its (nonzero) digits is 6048, while the sum is 33.
The square root of 18926070 is about 4350.4103254751. The cubic root of 18926070 is about 266.4936186310.
The spelling of 18926070 in words is "eighteen million, nine hundred twenty-six thousand, seventy".
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