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22830425 = 52913217
BaseRepresentation
bin101011100010…
…1110101011001
31120221220110022
41113011311121
521321033200
62133200225
7365025002
oct127056531
946856408
1022830425
1111983922
127790075
134964837
1430641a9
15200e885
hex15c5d59

22830425 has 6 divisors (see below), whose sum is σ = 28309758. Its totient is φ = 18264320.

The previous prime is 22830413. The next prime is 22830427. The reversal of 22830425 is 52403822.

It can be written as a sum of positive squares in 3 ways, for example, as 3575881 + 19254544 = 1891^2 + 4388^2 .

It is not a de Polignac number, because 22830425 - 26 = 22830361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22830394 and 22830403.

It is not an unprimeable number, because it can be changed into a prime (22830427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 456584 + ... + 456633.

It is an arithmetic number, because the mean of its divisors is an integer number (4718293).

Almost surely, 222830425 is an apocalyptic number.

22830425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22830425 is a deficient number, since it is larger than the sum of its proper divisors (5479333).

22830425 is an equidigital number, since it uses as much as digits as its factorization.

22830425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913227 (or 913222 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 22830425 is about 4778.1193999313. The cubic root of 22830425 is about 283.6860620427.

The spelling of 22830425 in words is "twenty-two million, eight hundred thirty thousand, four hundred twenty-five".

Divisors: 1 5 25 913217 4566085 22830425