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427824680 = 23550921013
BaseRepresentation
bin11001100000000…
…001011000101000
31002211000202010112
4121200001120220
51334010342210
6110241433452
713413310163
oct3140013050
91084022115
10427824680
111aa550018
12bb33b888
136a8343ca
1440b68ada
152785cd05
hex19801628

427824680 has 32 divisors (see below), whose sum is σ = 964542600. Its totient is φ = 170785536.

The previous prime is 427824671. The next prime is 427824689. The reversal of 427824680 is 86428724.

It is an interprime number because it is at equal distance from previous prime (427824671) and next prime (427824689).

It can be written as a sum of positive squares in 4 ways, for example, as 257730916 + 170093764 = 16054^2 + 13042^2 .

It is not an unprimeable number, because it can be changed into a prime (427824689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9854 + ... + 30866.

Almost surely, 2427824680 is an apocalyptic number.

427824680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

427824680 is an abundant number, since it is smaller than the sum of its proper divisors (536717920).

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

427824680 is a wasteful number, since it uses less digits than its factorization.

427824680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21533 (or 21529 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 427824680 is about 20683.9232255392. The cubic root of 427824680 is about 753.5092905260.

The spelling of 427824680 in words is "four hundred twenty-seven million, eight hundred twenty-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 509 1018 2036 2545 4072 5090 10180 20360 21013 42026 84052 105065 168104 210130 420260 840520 10695617 21391234 42782468 53478085 85564936 106956170 213912340 427824680