Base | Representation |
---|---|
bin | 1111001010111111… |
… | …10100111110000110 |
3 | 210000122210202200120 |
4 | 13211133310332012 |
5 | 113140143340230 |
6 | 3424125522410 |
7 | 405563564316 |
oct | 74537647606 |
9 | 23018722616 |
10 | 8145293190 |
11 | 34aa895371 |
12 | 16b3a13406 |
13 | 9ca684818 |
14 | 573ac9446 |
15 | 32a14a310 |
hex | 1e57f4f86 |
8145293190 has 32 divisors (see below), whose sum is σ = 19566766080. Its totient is φ = 2170071264.
The previous prime is 8145293171. The next prime is 8145293239. The reversal of 8145293190 is 913925418.
It is a super-2 number, since 2×81452931902 (a number of 21 digits) 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 15 ways as a sum of consecutive naturals, for example, 92280 + ... + 157499.
It is an arithmetic number, because the mean of its divisors is an integer number (611461440).
Almost surely, 28145293190 is an apocalyptic number.
8145293190 is an abundant number, since it is smaller than the sum of its proper divisors (11421472890).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8145293190 is a wasteful number, since it uses less digits than its factorization.
8145293190 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 250876.
The product of its (nonzero) digits is 77760, while the sum is 42.
The square root of 8145293190 is about 90251.2780518924. The cubic root of 8145293190 is about 2012.0351975722.
The spelling of 8145293190 in words is "eight billion, one hundred forty-five million, two hundred ninety-three thousand, one hundred ninety".
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