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425685460 = 22521284273
BaseRepresentation
bin11001010111110…
…111000111010100
31002200000001200011
4121113313013110
51332433413320
6110123530004
713356160324
oct3127670724
91080001604
10425685460
111a9319872
12ba689904
136a2657b5
144076d284
152758905a
hex195f71d4

425685460 has 12 divisors (see below), whose sum is σ = 893939508. Its totient is φ = 170274176.

The previous prime is 425685437. The next prime is 425685499. The reversal of 425685460 is 64586524.

It can be written as a sum of positive squares in 2 ways, for example, as 227044624 + 198640836 = 15068^2 + 14094^2 .

It is a super-2 number, since 2×4256854602 = 362416221710823200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10642117 + ... + 10642156.

It is an arithmetic number, because the mean of its divisors is an integer number (74494959).

Almost surely, 2425685460 is an apocalyptic number.

It is an amenable number.

425685460 is an abundant number, since it is smaller than the sum of its proper divisors (468254048).

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

425685460 is a wasteful number, since it uses less digits than its factorization.

425685460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21284282 (or 21284280 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The square root of 425685460 is about 20632.1462771084. The cubic root of 425685460 is about 752.2512858912.

The spelling of 425685460 in words is "four hundred twenty-five million, six hundred eighty-five thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 21284273 42568546 85137092 106421365 212842730 425685460