Base | Representation |
---|---|
bin | 10111011111110111… |
… | …110111011001000110 |
3 | 2102010101012110111220 |
4 | 113133313313121012 |
5 | 403133041103304 |
6 | 15331343341210 |
7 | 1552146156666 |
oct | 273767673106 |
9 | 72111173456 |
10 | 25230800454 |
11 | a778146902 |
12 | 4a818b1806 |
13 | 24c12b5c32 |
14 | 1314ca61a6 |
15 | 9ca0b2ad9 |
hex | 5dfdf7646 |
25230800454 has 36 divisors (see below), whose sum is σ = 53272866276. Its totient is φ = 7965286704.
The previous prime is 25230800447. The next prime is 25230800489. The reversal of 25230800454 is 45400803252.
It is a super-2 number, since 2×252308004542 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7390852 + ... + 7394264.
It is an arithmetic number, because the mean of its divisors is an integer number (1479801841).
Almost surely, 225230800454 is an apocalyptic number.
25230800454 is an abundant number, since it is smaller than the sum of its proper divisors (28042065822).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25230800454 is an frugal number, since it uses more digits than its factorization.
25230800454 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6869 (or 3437 counting only the distinct ones).
The product of its (nonzero) digits is 38400, while the sum is 33.
Multiplying 25230800454 by its product of nonzero digits (38400), we get a square (968862737433600 = 311265602).
The spelling of 25230800454 in words is "twenty-five billion, two hundred thirty million, eight hundred thousand, four hundred fifty-four".
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