Base | Representation |
---|---|
bin | 100100111100… |
… | …1000001010110 |
3 | 1100110002202000 |
4 | 1021321001112 |
5 | 14424320240 |
6 | 1531100130 |
7 | 323433336 |
oct | 111710126 |
9 | 40402660 |
10 | 19370070 |
11 | aa30025 |
12 | 65a1646 |
13 | 40227a5 |
14 | 28030c6 |
15 | 1a79430 |
hex | 1279056 |
19370070 has 32 divisors (see below), whose sum is σ = 51654240. Its totient is φ = 5165280.
The previous prime is 19370051. The next prime is 19370093. The reversal of 19370070 is 7007391.
It is a super-2 number, since 2×193700702 = 750399223609800, 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 an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35601 + ... + 36140.
It is an arithmetic number, because the mean of its divisors is an integer number (1614195).
Almost surely, 219370070 is an apocalyptic number.
19370070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
19370070 is an abundant number, since it is smaller than the sum of its proper divisors (32284170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19370070 is a wasteful number, since it uses less digits than its factorization.
19370070 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 71757 (or 71751 counting only the distinct ones).
The product of its (nonzero) digits is 1323, while the sum is 27.
The square root of 19370070 is about 4401.1441694178. The cubic root of 19370070 is about 268.5614852481.
The spelling of 19370070 in words is "nineteen million, three hundred seventy thousand, seventy".
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