Base | Representation |
---|---|
bin | 101111010101… |
… | …010001010010 |
3 | 212100101102111 |
4 | 233111101102 |
5 | 11134023030 |
6 | 1121535534 |
7 | 210315415 |
oct | 57252122 |
9 | 25311374 |
10 | 12407890 |
11 | 7005260 |
12 | 41a45aa |
13 | 2755861 |
14 | 190db7c |
15 | 115162a |
hex | bd5452 |
12407890 has 16 divisors (see below), whose sum is σ = 24364800. Its totient is φ = 4511920.
The previous prime is 12407887. The next prime is 12407891. The reversal of 12407890 is 9870421.
12407890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (12407891) 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, 56290 + ... + 56509.
It is an arithmetic number, because the mean of its divisors is an integer number (1522800).
Almost surely, 212407890 is an apocalyptic number.
12407890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12407890 is a deficient number, since it is larger than the sum of its proper divisors (11956910).
12407890 is a wasteful number, since it uses less digits than its factorization.
12407890 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 112817.
The product of its (nonzero) digits is 4032, while the sum is 31.
The square root of 12407890 is about 3522.4834988968. The cubic root of 12407890 is about 231.5079867313.
The spelling of 12407890 in words is "twelve million, four hundred seven thousand, eight hundred ninety".
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