Base | Representation |
---|---|
bin | 10110001010111111… |
… | …010101000001110000 |
3 | 2021110010111100000110 |
4 | 112022333111001300 |
5 | 342224003142423 |
6 | 14534152021320 |
7 | 1501644361434 |
oct | 261277250160 |
9 | 67403440013 |
10 | 23806693488 |
11 | a1072921a6 |
12 | 4744991840 |
13 | 23252468a6 |
14 | 121baba9c4 |
15 | 94505a193 |
hex | 58afd5070 |
23806693488 has 80 divisors (see below), whose sum is σ = 63236622240. Its totient is φ = 7714317312.
The previous prime is 23806693487. The next prime is 23806693577. The reversal of 23806693488 is 88439660832.
It is a happy number.
It is a super-2 number, since 2×238066934882 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23806693481) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234370 + ... + 320222.
It is an arithmetic number, because the mean of its divisors is an integer number (790457778).
Almost surely, 223806693488 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23806693488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31618311120).
23806693488 is an abundant number, since it is smaller than the sum of its proper divisors (39429928752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23806693488 is a wasteful number, since it uses less digits than its factorization.
23806693488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 86026 (or 86020 counting only the distinct ones).
The product of its (nonzero) digits is 11943936, while the sum is 57.
The spelling of 23806693488 in words is "twenty-three billion, eight hundred six million, six hundred ninety-three thousand, four hundred eighty-eight".
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