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500384381 = 7457156419
BaseRepresentation
bin11101110100110…
…100001001111101
31021212120011022212
4131310310021331
52011044300011
6121352550205
715254124410
oct3564641175
91255504285
10500384381
112374aa212
1211b6b2365
137c88b043
144a655b77
152dde208b
hex1dd3427d

500384381 has 8 divisors (see below), whose sum is σ = 573122880. Its totient is φ = 427959648.

The previous prime is 500384371. The next prime is 500384387. The reversal of 500384381 is 183483005.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 500384381 - 26 = 500384317 is a prime.

It is a super-2 number, since 2×5003843812 = 500769057497506322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500384387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75011 + ... + 81408.

It is an arithmetic number, because the mean of its divisors is an integer number (71640360).

Almost surely, 2500384381 is an apocalyptic number.

It is an amenable number.

500384381 is a deficient number, since it is larger than the sum of its proper divisors (72738499).

500384381 is a wasteful number, since it uses less digits than its factorization.

500384381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156883.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 500384381 is about 22369.2731442039. The cubic root of 500384381 is about 793.9038628217.

The spelling of 500384381 in words is "five hundred million, three hundred eighty-four thousand, three hundred eighty-one".

Divisors: 1 7 457 3199 156419 1094933 71483483 500384381