Base | Representation |
---|---|
bin | 100100111101… |
… | …1100110000100 |
3 | 1100110122012110 |
4 | 1021323212010 |
5 | 14430134422 |
6 | 1531221020 |
7 | 323506146 |
oct | 111734604 |
9 | 40418173 |
10 | 19380612 |
11 | aa37a39 |
12 | 65a7770 |
13 | 4027524 |
14 | 2806c96 |
15 | 1a7c60c |
hex | 127b984 |
19380612 has 24 divisors (see below), whose sum is σ = 47882016. Its totient is φ = 6080128.
The previous prime is 19380607. The next prime is 19380617. The reversal of 19380612 is 21608391.
It is an interprime number because it is at equal distance from previous prime (19380607) and next prime (19380617).
It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 19380612.
It is not an unprimeable number, because it can be changed into a prime (19380617) 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, 47298 + ... + 47705.
It is an arithmetic number, because the mean of its divisors is an integer number (1995084).
Almost surely, 219380612 is an apocalyptic number.
19380612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
19380612 is an abundant number, since it is smaller than the sum of its proper divisors (28501404).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19380612 is a wasteful number, since it uses less digits than its factorization.
19380612 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 95027 (or 95025 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 30.
The square root of 19380612 is about 4402.3416496224. The cubic root of 19380612 is about 268.6101971994.
The spelling of 19380612 in words is "nineteen million, three hundred eighty thousand, six hundred twelve".
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