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518148490 = 25514710067
BaseRepresentation
bin11110111000100…
…101000110001010
31100002222200002211
4132320211012022
52030121222430
6123225415334
715561121666
oct3670450612
91302880084
10518148490
112465326a2
1212563a54a
138346a852
144cb5b8a6
153075072a
hex1ee2518a

518148490 has 16 divisors (see below), whose sum is σ = 932941152. Its totient is φ = 207198544.

The previous prime is 518148479. The next prime is 518148503. The reversal of 518148490 is 94841815.

It is a zygodrome in base 3.

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, 46437 + ... + 56503.

It is an arithmetic number, because the mean of its divisors is an integer number (58308822).

Almost surely, 2518148490 is an apocalyptic number.

518148490 is a deficient number, since it is larger than the sum of its proper divisors (414792662).

518148490 is a wasteful number, since it uses less digits than its factorization.

518148490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15221.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 518148490 is about 22762.8752577525. The cubic root of 518148490 is about 803.1896046684.

The spelling of 518148490 in words is "five hundred eighteen million, one hundred forty-eight thousand, four hundred ninety".

Divisors: 1 2 5 10 5147 10067 10294 20134 25735 50335 51470 100670 51814849 103629698 259074245 518148490