Base | Representation |
---|---|
bin | 10101111001011111… |
… | …011100110100110000 |
3 | 2020200200002110120210 |
4 | 111321133130310300 |
5 | 341123324433034 |
6 | 14445103504120 |
7 | 1461451154226 |
oct | 257137346460 |
9 | 66620073523 |
10 | 23513124144 |
11 | 9a76600204 |
12 | 46825b8040 |
13 | 22a948ab13 |
14 | 11d0adcb16 |
15 | 9293bb8e9 |
hex | 5797dcd30 |
23513124144 has 20 divisors (see below), whose sum is σ = 60742237496. Its totient is φ = 7837708032.
The previous prime is 23513124121. The next prime is 23513124149. The reversal of 23513124144 is 44142131532.
It is a super-3 number, since 3×235131241443 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (23513124149) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244928329 + ... + 244928424.
Almost surely, 223513124144 is an apocalyptic number.
23513124144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
23513124144 is an abundant number, since it is smaller than the sum of its proper divisors (37229113352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23513124144 is a wasteful number, since it uses less digits than its factorization.
23513124144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 489856764 (or 489856758 counting only the distinct ones).
The product of its digits is 11520, while the sum is 30.
Adding to 23513124144 its reverse (44142131532), we get a palindrome (67655255676).
The spelling of 23513124144 in words is "twenty-three billion, five hundred thirteen million, one hundred twenty-four thousand, one hundred forty-four".
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