Base | Representation |
---|---|
bin | 1001010011111… |
… | …00011011000110 |
3 | 12102222002220110 |
4 | 10221330123012 |
5 | 124443314022 |
6 | 11430013450 |
7 | 1635606135 |
oct | 451743306 |
9 | 172862813 |
10 | 78104262 |
11 | 400a6985 |
12 | 221a7286 |
13 | 13248552 |
14 | a53191c |
15 | 6ccc00c |
hex | 4a7c6c6 |
78104262 has 32 divisors (see below), whose sum is σ = 164362464. Its totient is φ = 24710400.
The previous prime is 78104261. The next prime is 78104263. The reversal of 78104262 is 26240187.
It is an interprime number because it is at equal distance from previous prime (78104261) and next prime (78104263).
It is a super-2 number, since 2×781042622 = 12200551485129288, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78104261) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4812 + ... + 13392.
It is an arithmetic number, because the mean of its divisors is an integer number (5136327).
Almost surely, 278104262 is an apocalyptic number.
78104262 is an abundant number, since it is smaller than the sum of its proper divisors (86258202).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78104262 is a wasteful number, since it uses less digits than its factorization.
78104262 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8664.
The product of its (nonzero) digits is 5376, while the sum is 30.
The square root of 78104262 is about 8837.6615685372. The cubic root of 78104262 is about 427.4561577419.
The spelling of 78104262 in words is "seventy-eight million, one hundred four thousand, two hundred sixty-two".
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