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455745140 = 22534965293
BaseRepresentation
bin11011001010100…
…001111001110100
31011202120020210122
4123022201321310
51413132321030
6113120111112
714202525014
oct3312417164
91152506718
10455745140
11214290084
12108765498
137355b9a6
1444755c44
152a0258e5
hex1b2a1e74

455745140 has 24 divisors (see below), whose sum is σ = 959821800. Its totient is φ = 181772928.

The previous prime is 455745137. The next prime is 455745187. The reversal of 455745140 is 41547554.

It can be written as a sum of positive squares in 4 ways, for example, as 91164304 + 364580836 = 9548^2 + 19094^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 455745140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25667 + ... + 39626.

It is an arithmetic number, because the mean of its divisors is an integer number (39992575).

Almost surely, 2455745140 is an apocalyptic number.

It is an amenable number.

455745140 is an abundant number, since it is smaller than the sum of its proper divisors (504076660).

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

455745140 is a wasteful number, since it uses less digits than its factorization.

455745140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65651 (or 65649 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 35.

The square root of 455745140 is about 21348.1882135229. The cubic root of 455745140 is about 769.5568034798.

The spelling of 455745140 in words is "four hundred fifty-five million, seven hundred forty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 349 698 1396 1745 3490 6980 65293 130586 261172 326465 652930 1305860 22787257 45574514 91149028 113936285 227872570 455745140