Base | Representation |
---|---|
bin | 11111111011111100… |
… | …11000011001111110 |
3 | 1122020221000110221220 |
4 | 33331332120121332 |
5 | 240103321443210 |
6 | 11513211534210 |
7 | 1144614443514 |
oct | 177576303176 |
9 | 48227013856 |
10 | 17145890430 |
11 | 72a9454289 |
12 | 33a615a366 |
13 | 18032b38c6 |
14 | b892184b4 |
15 | 6a53e3c70 |
hex | 3fdf9867e |
17145890430 has 64 divisors (see below), whose sum is σ = 43585853760. Its totient is φ = 4301789184.
The previous prime is 17145890387. The next prime is 17145890449. The reversal of 17145890430 is 3409854171.
It is a happy number.
17145890430 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2647236 + ... + 2653704.
It is an arithmetic number, because the mean of its divisors is an integer number (681028965).
Almost surely, 217145890430 is an apocalyptic number.
17145890430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
17145890430 is an abundant number, since it is smaller than the sum of its proper divisors (26439963330).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
17145890430 is a wasteful number, since it uses less digits than its factorization.
17145890430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11693.
The product of its (nonzero) digits is 120960, while the sum is 42.
The spelling of 17145890430 in words is "seventeen billion, one hundred forty-five million, eight hundred ninety thousand, four hundred thirty".
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