Base | Representation |
---|---|
bin | 10101011100111111… |
… | …011110001010101100 |
3 | 2012110100101011201221 |
4 | 111130333132022230 |
5 | 334133423311423 |
6 | 14325423313124 |
7 | 1443554043100 |
oct | 253477361254 |
9 | 65410334657 |
10 | 23034978988 |
11 | 985071071a |
12 | 456a44b7a4 |
13 | 22313b84a8 |
14 | 11873d5900 |
15 | 8ec41de5d |
hex | 55cfde2ac |
23034978988 has 36 divisors (see below), whose sum is σ = 49651033320. Its totient is φ = 9291418752.
The previous prime is 23034978983. The next prime is 23034979001. The reversal of 23034978988 is 88987943032.
It is a super-2 number, since 2×230349789882 (a number of 22 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (23034978983) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3453298 + ... + 3459961.
It is an arithmetic number, because the mean of its divisors is an integer number (1379195370).
Almost surely, 223034978988 is an apocalyptic number.
23034978988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
23034978988 is an abundant number, since it is smaller than the sum of its proper divisors (26616054332).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23034978988 is a wasteful number, since it uses less digits than its factorization.
23034978988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6913294 (or 6913285 counting only the distinct ones).
The product of its (nonzero) digits is 20901888, while the sum is 61.
The spelling of 23034978988 in words is "twenty-three billion, thirty-four million, nine hundred seventy-eight thousand, nine hundred eighty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •