Base | Representation |
---|---|
bin | 1010101101010111… |
… | …1100000011001001 |
3 | 21102100011121012210 |
4 | 2223111330003021 |
5 | 21341402424141 |
6 | 1153125455333 |
7 | 131144110065 |
oct | 25325740311 |
9 | 7370147183 |
10 | 2874654921 |
11 | 1245738876 |
12 | 682871549 |
13 | 36a738758 |
14 | 1d3ad8aa5 |
15 | 11c584916 |
hex | ab57c0c9 |
2874654921 has 4 divisors (see below), whose sum is σ = 3832873232. Its totient is φ = 1916436612.
The previous prime is 2874654919. The next prime is 2874654941. The reversal of 2874654921 is 1294564782.
2874654921 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 2874654921 - 21 = 2874654919 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2874654901) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479109151 + ... + 479109156.
It is an arithmetic number, because the mean of its divisors is an integer number (958218308).
Almost surely, 22874654921 is an apocalyptic number.
It is an amenable number.
2874654921 is a deficient number, since it is larger than the sum of its proper divisors (958218311).
2874654921 is an equidigital number, since it uses as much as digits as its factorization.
2874654921 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 958218310.
The product of its digits is 967680, while the sum is 48.
The square root of 2874654921 is about 53615.8084989866. The cubic root of 2874654921 is about 1421.8765972858.
The spelling of 2874654921 in words is "two billion, eight hundred seventy-four million, six hundred fifty-four thousand, nine hundred twenty-one".
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