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22275275 = 521181001
BaseRepresentation
bin101010011111…
…0010011001011
31112220200221012
41110332103023
521200302100
62113234135
7360223331
oct124762313
945820835
1022275275
1111634820
12756294b
1347cbc49
142d5bb51
151e50135
hex153e4cb

22275275 has 12 divisors (see below), whose sum is σ = 30132744. Its totient is φ = 16200000.

The previous prime is 22275269. The next prime is 22275313. The reversal of 22275275 is 57257222.

It is not a de Polignac number, because 22275275 - 214 = 22258891 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40226 + ... + 40775.

It is an arithmetic number, because the mean of its divisors is an integer number (2511062).

Almost surely, 222275275 is an apocalyptic number.

22275275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22275275 is a deficient number, since it is larger than the sum of its proper divisors (7857469).

22275275 is a wasteful number, since it uses less digits than its factorization.

22275275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81022 (or 81017 counting only the distinct ones).

The product of its digits is 19600, while the sum is 32.

The square root of 22275275 is about 4719.6689502549. The cubic root of 22275275 is about 281.3677761876.

It can be divided in two parts, 22275 and 275, that multiplied together give a square (6125625 = 24752).

The spelling of 22275275 in words is "twenty-two million, two hundred seventy-five thousand, two hundred seventy-five".

Divisors: 1 5 11 25 55 275 81001 405005 891011 2025025 4455055 22275275