Base | Representation |
---|---|
bin | 10101100111101110… |
… | …100111100000000000 |
3 | 2012220220022210020020 |
4 | 111213232213200000 |
5 | 340021032011034 |
6 | 14355340213440 |
7 | 1451202115602 |
oct | 254756474000 |
9 | 65826283206 |
10 | 23215110144 |
11 | 9933362946 |
12 | 45ba83a280 |
13 | 225c806c85 |
14 | 11a32c5172 |
15 | 90d151249 |
hex | 567ba7800 |
23215110144 has 96 divisors (see below), whose sum is σ = 61966391760. Its totient is φ = 7729053696.
The previous prime is 23215110103. The next prime is 23215110167. The reversal of 23215110144 is 44101151232.
It is a tau number, because it is divible by the number of its divisors (96).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6713664 + ... + 6717120.
Almost surely, 223215110144 is an apocalyptic number.
23215110144 is a gapful number since it is divisible by the number (24) 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 23215110144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30983195880).
23215110144 is an abundant number, since it is smaller than the sum of its proper divisors (38751281616).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23215110144 is a wasteful number, since it uses less digits than its factorization.
23215110144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4575 (or 4555 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 24.
Adding to 23215110144 its reverse (44101151232), we get a palindrome (67316261376).
The spelling of 23215110144 in words is "twenty-three billion, two hundred fifteen million, one hundred ten thousand, one hundred forty-four".
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