Base | Representation |
---|---|
bin | 1001011001111… |
… | …11001111111000 |
3 | 12111110122120002 |
4 | 10230333033320 |
5 | 130144333024 |
6 | 11455052132 |
7 | 1645441520 |
oct | 454771770 |
9 | 174418502 |
10 | 78902264 |
11 | 405a1491 |
12 | 22511048 |
13 | 1346783c |
14 | a69c680 |
15 | 6dd86ae |
hex | 4b3f3f8 |
78902264 has 24 divisors (see below), whose sum is σ = 169218840. Its totient is φ = 33786768.
The previous prime is 78902261. The next prime is 78902267. The reversal of 78902264 is 46220987.
It is an interprime number because it is at equal distance from previous prime (78902261) and next prime (78902267).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78902261) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65879 + ... + 67065.
It is an arithmetic number, because the mean of its divisors is an integer number (7050785).
Almost surely, 278902264 is an apocalyptic number.
It is an amenable number.
78902264 is an abundant number, since it is smaller than the sum of its proper divisors (90316576).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78902264 is an equidigital number, since it uses as much as digits as its factorization.
78902264 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2387 (or 1196 counting only the distinct ones).
The product of its (nonzero) digits is 48384, while the sum is 38.
The square root of 78902264 is about 8882.6946362013. The cubic root of 78902264 is about 428.9070204908.
The spelling of 78902264 in words is "seventy-eight million, nine hundred two thousand, two hundred sixty-four".
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