Base | Representation |
---|---|
bin | 100111110110… |
… | …1110010001011 |
3 | 1110022200011112 |
4 | 1033231302023 |
5 | 20322200112 |
6 | 2023520535 |
7 | 342422633 |
oct | 117556213 |
9 | 43280145 |
10 | 20896907 |
11 | 10883179 |
12 | 6bb914b |
13 | 4438745 |
14 | 2abd6c3 |
15 | 1c7ba22 |
hex | 13edc8b |
20896907 has 8 divisors (see below), whose sum is σ = 21915840. Its totient is φ = 19897920.
The previous prime is 20896901. The next prime is 20896919. The reversal of 20896907 is 70969802.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20896907 - 28 = 20896651 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20896901) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2819 + ... + 7052.
It is an arithmetic number, because the mean of its divisors is an integer number (2739480).
Almost surely, 220896907 is an apocalyptic number.
20896907 is a deficient number, since it is larger than the sum of its proper divisors (1018933).
20896907 is an equidigital number, since it uses as much as digits as its factorization.
20896907 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9973.
The product of its (nonzero) digits is 54432, while the sum is 41.
The square root of 20896907 is about 4571.3134873907. The cubic root of 20896907 is about 275.4402073570.
The spelling of 20896907 in words is "twenty million, eight hundred ninety-six thousand, nine hundred seven".
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