Base | Representation |
---|---|
bin | 1001010101110… |
… | …11000101100010 |
3 | 12110110010222200 |
4 | 10222323011202 |
5 | 130030022210 |
6 | 11435314030 |
7 | 1641025344 |
oct | 452730542 |
9 | 173403880 |
10 | 78360930 |
11 | 402617aa |
12 | 222ab916 |
13 | 1330831b |
14 | a59b294 |
15 | 6d2d0c0 |
hex | 4abb162 |
78360930 has 48 divisors (see below), whose sum is σ = 204647040. Its totient is φ = 20803104.
The previous prime is 78360923. The next prime is 78360937. The reversal of 78360930 is 3906387.
It is an interprime number because it is at equal distance from previous prime (78360923) and next prime (78360937).
It is a super-2 number, since 2×783609302 = 12280870700929800, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (78360937) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19689 + ... + 23331.
It is an arithmetic number, because the mean of its divisors is an integer number (4263480).
Almost surely, 278360930 is an apocalyptic number.
78360930 is an abundant number, since it is smaller than the sum of its proper divisors (126286110).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78360930 is a wasteful number, since it uses less digits than its factorization.
78360930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3895 (or 3892 counting only the distinct ones).
The product of its (nonzero) digits is 27216, while the sum is 36.
The square root of 78360930 is about 8852.1709201755. The cubic root of 78360930 is about 427.9238844759.
The spelling of 78360930 in words is "seventy-eight million, three hundred sixty thousand, nine hundred thirty".
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