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518052894 = 23471837067
BaseRepresentation
bin11110111000001…
…101110000011110
31100002210210222020
4132320031300132
52030110143034
6123223401010
715560243202
oct3670156036
91302723866
10518052894
11246477897
121255b3166
1383436198
144cb34b02
1530732249
hex1ee0dc1e

518052894 has 16 divisors (see below), whose sum is σ = 1058151168. Its totient is φ = 169010072.

The previous prime is 518052869. The next prime is 518052923. The reversal of 518052894 is 498250815.

It is a happy number.

It is a Curzon number.

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, 918252 + ... + 918815.

It is an arithmetic number, because the mean of its divisors is an integer number (66134448).

Almost surely, 2518052894 is an apocalyptic number.

518052894 is an abundant number, since it is smaller than the sum of its proper divisors (540098274).

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

518052894 is a wasteful number, since it uses less digits than its factorization.

518052894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837119.

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 518052894 is about 22760.7753382876. The cubic root of 518052894 is about 803.1402067079.

The spelling of 518052894 in words is "five hundred eighteen million, fifty-two thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 47 94 141 282 1837067 3674134 5511201 11022402 86342149 172684298 259026447 518052894