Base | Representation |
---|---|
bin | 10101011100110000… |
… | …010011000100111000 |
3 | 2012110001220002111212 |
4 | 111130300103010320 |
5 | 334131414021100 |
6 | 14325202142252 |
7 | 1443505165451 |
oct | 253460230470 |
9 | 65401802455 |
10 | 23031001400 |
11 | 9849444260 |
12 | 4569051988 |
13 | 2230624ba4 |
14 | 1186a7c128 |
15 | 8ebdd5635 |
hex | 55cc13138 |
23031001400 has 96 divisors (see below), whose sum is σ = 59372963280. Its totient is φ = 8237568000.
The previous prime is 23031001393. The next prime is 23031001403. The reversal of 23031001400 is 410013032.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23031001403) 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, 48392 + ... + 220008.
Almost surely, 223031001400 is an apocalyptic number.
23031001400 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 23031001400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29686481640).
23031001400 is an abundant number, since it is smaller than the sum of its proper divisors (36341961880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23031001400 is a wasteful number, since it uses less digits than its factorization.
23031001400 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 171705 (or 171696 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 23031001400 its reverse (410013032), we get a palindrome (23441014432).
The spelling of 23031001400 in words is "twenty-three billion, thirty-one million, one thousand, four hundred".
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