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22703425 = 52908137
BaseRepresentation
bin101011010011…
…0110101000001
31120201110020121
41112212311001
521303002200
62130340241
7363655513
oct126466501
946643217
1022703425
11118a7468
12772a681
13491baa4
14302dbb3
151ed6e1a
hex15a6d41

22703425 has 6 divisors (see below), whose sum is σ = 28152278. Its totient is φ = 18162720.

The previous prime is 22703411. The next prime is 22703431. The reversal of 22703425 is 52430722.

It can be written as a sum of positive squares in 3 ways, for example, as 4376464 + 18326961 = 2092^2 + 4281^2 .

It is not a de Polignac number, because 22703425 - 25 = 22703393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 908137 = 22703425 / (2 + 2 + 7 + 0 + 3 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22703425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 454044 + ... + 454093.

Almost surely, 222703425 is an apocalyptic number.

22703425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22703425 is a deficient number, since it is larger than the sum of its proper divisors (5448853).

22703425 is an equidigital number, since it uses as much as digits as its factorization.

22703425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908147 (or 908142 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 22703425 is about 4764.8111190267. The cubic root of 22703425 is about 283.1590585332.

The spelling of 22703425 in words is "twenty-two million, seven hundred three thousand, four hundred twenty-five".

Divisors: 1 5 25 908137 4540685 22703425