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425493090 = 232511429791
BaseRepresentation
bin11001010111001…
…000001001100010
31002122122021210100
4121113020021202
51332411234330
6110115443230
713354426431
oct3127101142
91078567710
10425493090
111a91a8290
12ba5b6516
136a1c9079
144071d118
152754c060
hex195c8262

425493090 has 48 divisors (see below), whose sum is σ = 1206855936. Its totient is φ = 103149600.

The previous prime is 425493043. The next prime is 425493091. The reversal of 425493090 is 90394524.

It is not an unprimeable number, because it can be changed into a prime (425493091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213906 + ... + 215885.

It is an arithmetic number, because the mean of its divisors is an integer number (25142832).

Almost surely, 2425493090 is an apocalyptic number.

425493090 is an abundant number, since it is smaller than the sum of its proper divisors (781362846).

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

425493090 is a wasteful number, since it uses less digits than its factorization.

425493090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429815 (or 429812 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 425493090 is about 20627.4838504360. The cubic root of 425493090 is about 752.1379530845.

It can be divided in two parts, 4254 and 93090, that added together give a square (97344 = 3122).

The spelling of 425493090 in words is "four hundred twenty-five million, four hundred ninety-three thousand, ninety".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 165 198 330 495 990 429791 859582 1289373 2148955 2578746 3868119 4297910 4727701 6446865 7736238 9455402 12893730 14183103 19340595 23638505 28366206 38681190 42549309 47277010 70915515 85098618 141831030 212746545 425493090