Base | Representation |
---|---|
bin | 10101011100000011… |
… | …001011001111000000 |
3 | 2012102020122010201120 |
4 | 111130003023033000 |
5 | 334120402012200 |
6 | 14324100432240 |
7 | 1443302511651 |
oct | 253403131700 |
9 | 65366563646 |
10 | 23019172800 |
11 | 98427a5258 |
12 | 45650a8680 |
13 | 222b042c10 |
14 | 118527d528 |
15 | 8ead4a9a0 |
hex | 55c0cb3c0 |
23019172800 has 672 divisors, whose sum is σ = 87074093568. Its totient is φ = 5279662080.
The previous prime is 23019172769. The next prime is 23019172807. The reversal of 23019172800 is 827191032.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23019172807) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 61713414 + ... + 61713786.
It is an arithmetic number, because the mean of its divisors is an integer number (129574544).
Almost surely, 223019172800 is an apocalyptic number.
23019172800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23019172800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43537046784).
23019172800 is an abundant number, since it is smaller than the sum of its proper divisors (64054920768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23019172800 is a wasteful number, since it uses less digits than its factorization.
23019172800 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 477 (or 462 counting only the distinct ones).
The product of its (nonzero) digits is 6048, while the sum is 33.
The spelling of 23019172800 in words is "twenty-three billion, nineteen million, one hundred seventy-two thousand, eight hundred".
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