Base | Representation |
---|---|
bin | 100100111100… |
… | …1111110111100 |
3 | 1100110022011000 |
4 | 1021321332330 |
5 | 14424432022 |
6 | 1531130300 |
7 | 323451000 |
oct | 111717674 |
9 | 40408130 |
10 | 19374012 |
11 | aa32a89 |
12 | 65a3990 |
13 | 4024518 |
14 | 2804700 |
15 | 1a7a6ac |
hex | 1279fbc |
19374012 has 96 divisors (see below), whose sum is σ = 58688000. Its totient is φ = 5524848.
The previous prime is 19373989. The next prime is 19374013. The reversal of 19374012 is 21047391.
It is a super-2 number, since 2×193740122 = 750704681952288, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19374013) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36783 + ... + 37305.
Almost surely, 219374012 is an apocalyptic number.
19374012 is a gapful number since it is divisible by the number (12) 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 19374012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29344000).
19374012 is an abundant number, since it is smaller than the sum of its proper divisors (39313988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19374012 is a wasteful number, since it uses less digits than its factorization.
19374012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 557 (or 535 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 27.
The square root of 19374012 is about 4401.5919847255. The cubic root of 19374012 is about 268.5797023147.
The spelling of 19374012 in words is "nineteen million, three hundred seventy-four thousand, twelve".
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