Base | Representation |
---|---|
bin | 100100001111… |
… | …1001011011000 |
3 | 1022202101221110 |
4 | 1020133023120 |
5 | 14331031242 |
6 | 1515140320 |
7 | 320341425 |
oct | 110371330 |
9 | 38671843 |
10 | 19002072 |
11 | a7a95a1 |
12 | 64446a0 |
13 | 3c2413b |
14 | 2748d4c |
15 | 1a0539c |
hex | 121f2d8 |
19002072 has 32 divisors (see below), whose sum is σ = 47678400. Its totient is φ = 6310944.
The previous prime is 19002059. The next prime is 19002083. The reversal of 19002072 is 27020091.
It is a happy number.
It is a super-2 number, since 2×190020722 = 722157480586368, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6079 + ... + 8657.
It is an arithmetic number, because the mean of its divisors is an integer number (1489950).
Almost surely, 219002072 is an apocalyptic number.
19002072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
19002072 is an abundant number, since it is smaller than the sum of its proper divisors (28676328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19002072 is a wasteful number, since it uses less digits than its factorization.
19002072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2895 (or 2891 counting only the distinct ones).
The product of its (nonzero) digits is 252, while the sum is 21.
The square root of 19002072 is about 4359.1366117616. The cubic root of 19002072 is about 266.8498643937.
The spelling of 19002072 in words is "nineteen million, two thousand, seventy-two".
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