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2312790225 = 35230837203
BaseRepresentation
bin1000100111011010…
…0110000011010001
312222011220220202020
42021312212003101
514214033241400
61021255042053
7111212251434
oct21166460321
95864826666
102312790225
11a87567589
12546670329
132ab202a35
1417d23b81b
15d809b2a0
hex89da60d1

2312790225 has 12 divisors (see below), whose sum is σ = 3823813296. Its totient is φ = 1233488080.

The previous prime is 2312790199. The next prime is 2312790229. The reversal of 2312790225 is 5220972132.

It is not a de Polignac number, because 2312790225 - 225 = 2279235793 is a prime.

It is a super-3 number, since 3×23127902253 (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2312790229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15418527 + ... + 15418676.

It is an arithmetic number, because the mean of its divisors is an integer number (318651108).

Almost surely, 22312790225 is an apocalyptic number.

2312790225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2312790225 is a deficient number, since it is larger than the sum of its proper divisors (1511023071).

2312790225 is a wasteful number, since it uses less digits than its factorization.

2312790225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30837216 (or 30837211 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 2312790225 is about 48091.4776753636. The cubic root of 2312790225 is about 1322.4484371628.

The spelling of 2312790225 in words is "two billion, three hundred twelve million, seven hundred ninety thousand, two hundred twenty-five".

Divisors: 1 3 5 15 25 75 30837203 92511609 154186015 462558045 770930075 2312790225