Base | Representation |
---|---|
bin | 101101001010… |
… | …1011111011001 |
3 | 1122120010012112 |
4 | 1122111133121 |
5 | 22030242420 |
6 | 2203322105 |
7 | 405166526 |
oct | 132253731 |
9 | 48503175 |
10 | 23680985 |
11 | 12404969 |
12 | 7b20335 |
13 | 4ba1a23 |
14 | 320614d |
15 | 212b8c5 |
hex | 16957d9 |
23680985 has 16 divisors (see below), whose sum is σ = 29538432. Its totient is φ = 18211200.
The previous prime is 23680967. The next prime is 23680991. The reversal of 23680985 is 58908632.
It is not a de Polignac number, because 23680985 - 28 = 23680729 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a Duffinian number.
It is a Curzon 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, 13742 + ... + 15368.
It is an arithmetic number, because the mean of its divisors is an integer number (1846152).
Almost surely, 223680985 is an apocalyptic number.
It is an amenable number.
23680985 is a deficient number, since it is larger than the sum of its proper divisors (5857447).
23680985 is a wasteful number, since it uses less digits than its factorization.
23680985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1744.
The product of its (nonzero) digits is 103680, while the sum is 41.
The square root of 23680985 is about 4866.3112313127. The cubic root of 23680985 is about 287.1661556540.
The spelling of 23680985 in words is "twenty-three million, six hundred eighty thousand, nine hundred eighty-five".
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