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25055700930 = 23251321415129
BaseRepresentation
bin10111010101011011…
…111010011111000010
32101200011201111010100
4113111123322133002
5402303224412210
615302130343230
71544621641521
oct272533723702
971604644110
1025055700930
11a698320a57
124a3312ab16
132493c39750
1412d99264b8
159b9a265c0
hex5d56fa7c2

25055700930 has 48 divisors (see below), whose sum is σ = 70155965880. Its totient is φ = 6167556864.

The previous prime is 25055700913. The next prime is 25055700961. The reversal of 25055700930 is 3900755052.

25055700930 is a `hidden beast` number, since 2 + 50 + 5 + 570 + 0 + 9 + 30 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12627241641 + 12428459289 = 112371^2 + 111483^2 .

It is a super-3 number, since 3×250557009303 (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10706395 + ... + 10708734.

Almost surely, 225055700930 is an apocalyptic number.

25055700930 is an abundant number, since it is smaller than the sum of its proper divisors (45100264950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25055700930 is a wasteful number, since it uses less digits than its factorization.

25055700930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21415155 (or 21415152 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 36.

The spelling of 25055700930 in words is "twenty-five billion, fifty-five million, seven hundred thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 195 234 390 585 1170 21415129 42830258 64245387 107075645 128490774 192736161 214151290 278396677 321226935 385472322 556793354 642453870 835190031 963680805 1391983385 1670380062 1927361610 2505570093 2783966770 4175950155 5011140186 8351900310 12527850465 25055700930