Base | Representation |
---|---|
bin | 100100011000010011… |
… | …1001110010110011101 |
3 | 21110122122222012122222 |
4 | 1020300213032112131 |
5 | 2240000000000333 |
6 | 55520133515125 |
7 | 5434003354400 |
oct | 1106047162635 |
9 | 243578865588 |
10 | 78125000093 |
11 | 30150586988 |
12 | 13183aa2aa5 |
13 | 74a084550a |
14 | 3ad1b3bd37 |
15 | 2073a9d298 |
hex | 12309ce59d |
78125000093 has 24 divisors (see below), whose sum is σ = 93666746592. Its totient is φ = 64923786144.
The previous prime is 78125000069. The next prime is 78125000099. The reversal of 78125000093 is 39000052187.
It is not a de Polignac number, because 78125000093 - 28 = 78124999837 is a prime.
It is a super-2 number, since 2×781250000932 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78125000099) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 436946 + ... + 589212.
It is an arithmetic number, because the mean of its divisors is an integer number (3902781108).
Almost surely, 278125000093 is an apocalyptic number.
It is an amenable number.
78125000093 is a deficient number, since it is larger than the sum of its proper divisors (15541746499).
78125000093 is a wasteful number, since it uses less digits than its factorization.
78125000093 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 152601 (or 152594 counting only the distinct ones).
The product of its (nonzero) digits is 15120, while the sum is 35.
The spelling of 78125000093 in words is "seventy-eight billion, one hundred twenty-five million, ninety-three", and thus it is an aban number.
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