Search a number
-
+
425281880 = 23552120407
BaseRepresentation
bin11001010110010…
…100100101011000
31002122020120001202
4121112110211120
51332333010010
6110111133332
713352556602
oct3126244530
91078216052
10425281880
111a9073631
12ba514248
136a153baa
14406a6172
15275096a5
hex19594958

425281880 has 32 divisors (see below), whose sum is σ = 958767840. Its totient is φ = 169777920.

The previous prime is 425281873. The next prime is 425281919. The reversal of 425281880 is 88182524.

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 7 ways as a sum of consecutive naturals, for example, 10637 + ... + 31043.

It is an arithmetic number, because the mean of its divisors is an integer number (29961495).

Almost surely, 2425281880 is an apocalyptic number.

425281880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425281880 is an abundant number, since it is smaller than the sum of its proper divisors (533485960).

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

425281880 is a wasteful number, since it uses less digits than its factorization.

425281880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20939 (or 20935 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 425281880 is about 20622.3635890748. The cubic root of 425281880 is about 752.0134815374.

The spelling of 425281880 in words is "four hundred twenty-five million, two hundred eighty-one thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 521 1042 2084 2605 4168 5210 10420 20407 20840 40814 81628 102035 163256 204070 408140 816280 10632047 21264094 42528188 53160235 85056376 106320470 212640940 425281880