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425531430 = 23254728127
BaseRepresentation
bin11001010111010…
…001100000100110
31002122201020101100
4121113101200212
51332414001210
6110120340530
713354646262
oct3127214046
91078636340
10425531430
111a9224075
12ba614746
136a21065c
144072d0a2
15275585c0
hex195d1826

425531430 has 24 divisors (see below), whose sum is σ = 1106381952. Its totient is φ = 113475024.

The previous prime is 425531417. The next prime is 425531459. The reversal of 425531430 is 34135524.

It is a junction number, because it is equal to n+sod(n) for n = 425531394 and 425531403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2363974 + ... + 2364153.

It is an arithmetic number, because the mean of its divisors is an integer number (46099248).

Almost surely, 2425531430 is an apocalyptic number.

425531430 is an abundant number, since it is smaller than the sum of its proper divisors (680850522).

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

425531430 is a wasteful number, since it uses less digits than its factorization.

425531430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728140 (or 4728137 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 425531430 is about 20628.4131721274. The cubic root of 425531430 is about 752.1605434263.

Adding to 425531430 its reverse (34135524), we get a palindrome (459666954).

The spelling of 425531430 in words is "four hundred twenty-five million, five hundred thirty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 4728127 9456254 14184381 23640635 28368762 42553143 47281270 70921905 85106286 141843810 212765715 425531430