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513106894 = 21989151717
BaseRepresentation
bin11110100101010…
…110001111001110
31022202111112100001
4132211112033032
52022323410034
6122525354514
715500223316
oct3645261716
91282445301
10513106894
112436a9893
12123a08a3a
13823c3b61
144c208446
15300a6a14
hex1e9563ce

513106894 has 16 divisors (see below), whose sum is σ = 819277200. Its totient is φ = 240318144.

The previous prime is 513106883. The next prime is 513106921. The reversal of 513106894 is 498601315.

It is a congruent number.

It is an unprimeable number.

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, 72477 + ... + 79240.

It is an arithmetic number, because the mean of its divisors is an integer number (51204825).

Almost surely, 2513106894 is an apocalyptic number.

513106894 is a deficient number, since it is larger than the sum of its proper divisors (306170306).

513106894 is a wasteful number, since it uses less digits than its factorization.

513106894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151827.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 513106894 is about 22651.8629255962. The cubic root of 513106894 is about 800.5760923391.

The spelling of 513106894 in words is "five hundred thirteen million, one hundred six thousand, eight hundred ninety-four".

Divisors: 1 2 19 38 89 178 1691 3382 151717 303434 2882623 5765246 13502813 27005626 256553447 513106894