Base | Representation |
---|---|
bin | 101101001110… |
… | …0011110110100 |
3 | 1122121120111002 |
4 | 1122130132310 |
5 | 22032201440 |
6 | 2204102432 |
7 | 405346154 |
oct | 132343664 |
9 | 48546432 |
10 | 23709620 |
11 | 12424430 |
12 | 7b34a18 |
13 | 4bb1a7c |
14 | 3212764 |
15 | 2135115 |
hex | 169c7b4 |
23709620 has 48 divisors (see below), whose sum is σ = 55496448. Its totient is φ = 8434560.
The previous prime is 23709607. The next prime is 23709643. The reversal of 23709620 is 2690732.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9194 + ... + 11486.
It is an arithmetic number, because the mean of its divisors is an integer number (1156176).
Almost surely, 223709620 is an apocalyptic number.
23709620 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 23709620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27748224).
23709620 is an abundant number, since it is smaller than the sum of its proper divisors (31786828).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23709620 is a wasteful number, since it uses less digits than its factorization.
23709620 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2360 (or 2358 counting only the distinct ones).
The product of its (nonzero) digits is 4536, while the sum is 29.
The square root of 23709620 is about 4869.2525093694. The cubic root of 23709620 is about 287.2818559465.
The spelling of 23709620 in words is "twenty-three million, seven hundred nine thousand, six hundred twenty".
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