Search a number
-
+
425280893 = 894778437
BaseRepresentation
bin11001010110010…
…100010101111101
31002122020111201012
4121112110111331
51332332442033
6110111125005
713352553662
oct3126242575
91078214635
10425280893
111a9072914
12ba513765
136a1535cb
14406a5a69
1527509248
hex1959457d

425280893 has 4 divisors (see below), whose sum is σ = 430059420. Its totient is φ = 420502368.

The previous prime is 425280871. The next prime is 425280899. The reversal of 425280893 is 398082524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65723449 + 359557444 = 8107^2 + 18962^2 .

It is a cyclic number.

It is not a de Polignac number, because 425280893 - 214 = 425264509 is a prime.

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 425280893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425280899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2389130 + ... + 2389307.

It is an arithmetic number, because the mean of its divisors is an integer number (107514855).

Almost surely, 2425280893 is an apocalyptic number.

It is an amenable number.

425280893 is a deficient number, since it is larger than the sum of its proper divisors (4778527).

425280893 is an equidigital number, since it uses as much as digits as its factorization.

425280893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778526.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 425280893 is about 20622.3396587293. The cubic root of 425280893 is about 752.0128997759.

The spelling of 425280893 in words is "four hundred twenty-five million, two hundred eighty thousand, eight hundred ninety-three".

Divisors: 1 89 4778437 425280893