Base | Representation |
---|---|
bin | 10101100100010101… |
… | …000101100010101000 |
3 | 2012202221000122112111 |
4 | 111210111011202220 |
5 | 334411432221200 |
6 | 14345542052104 |
7 | 1446610324063 |
oct | 254425054250 |
9 | 65687018474 |
10 | 23158085800 |
11 | 9904154693 |
12 | 45a371a034 |
13 | 2250a5c565 |
14 | 11998bd8da |
15 | 90813a0ba |
hex | 5645458a8 |
23158085800 has 24 divisors (see below), whose sum is σ = 53842549950. Its totient is φ = 9263234240.
The previous prime is 23158085777. The next prime is 23158085803. The reversal of 23158085800 is 858085132.
It can be written as a sum of positive squares in 3 ways, for example, as 12002078916 + 11156006884 = 109554^2 + 105622^2 .
It is a Harshad number since it is a multiple of its sum of digits (40).
It is not an unprimeable number, because it can be changed into a prime (23158085803) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57895015 + ... + 57895414.
Almost surely, 223158085800 is an apocalyptic number.
23158085800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23158085800 is an abundant number, since it is smaller than the sum of its proper divisors (30684464150).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23158085800 is a wasteful number, since it uses less digits than its factorization.
23158085800 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 115790445 (or 115790436 counting only the distinct ones).
The product of its (nonzero) digits is 76800, while the sum is 40.
The spelling of 23158085800 in words is "twenty-three billion, one hundred fifty-eight million, eighty-five thousand, eight hundred".
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