Base | Representation |
---|---|
bin | 100111100010… |
… | …1011001111010 |
3 | 1110000021021212 |
4 | 1033011121322 |
5 | 20301402024 |
6 | 2020203122 |
7 | 341133506 |
oct | 117053172 |
9 | 43007255 |
10 | 20731514 |
11 | 1077a991 |
12 | 6b394a2 |
13 | 43ab38b |
14 | 2a79306 |
15 | 1c47a0e |
hex | 13c567a |
20731514 has 8 divisors (see below), whose sum is σ = 31168800. Its totient is φ = 10341916.
The previous prime is 20731499. The next prime is 20731553. The reversal of 20731514 is 41513702.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 20731514.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10814 + ... + 12585.
It is an arithmetic number, because the mean of its divisors is an integer number (3896100).
Almost surely, 220731514 is an apocalyptic number.
20731514 is a deficient number, since it is larger than the sum of its proper divisors (10437286).
20731514 is a wasteful number, since it uses less digits than its factorization.
20731514 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23844.
The product of its (nonzero) digits is 840, while the sum is 23.
The square root of 20731514 is about 4553.1872353331. The cubic root of 20731514 is about 274.7116051015.
The spelling of 20731514 in words is "twenty million, seven hundred thirty-one thousand, five hundred fourteen".
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