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505404612 = 223214039017
BaseRepresentation
bin11110000111111…
…101110011000100
31022020000012210100
4132013331303010
52013340421422
6122052324100
715344603556
oct3607756304
91266005710
10505404612
1123a318a69
12121313630
13809280ab
144b1a14d6
152e5847ac
hex1e1fdcc4

505404612 has 18 divisors (see below), whose sum is σ = 1277550638. Its totient is φ = 168468192.

The previous prime is 505404607. The next prime is 505404619. The reversal of 505404612 is 216404505.

505404612 is a `hidden beast` number, since 5 + 0 + 5 + 40 + 4 + 612 = 666.

It can be written as a sum of positive squares in only one way, i.e., 433222596 + 72182016 = 20814^2 + 8496^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (505404619) 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 5 ways as a sum of consecutive naturals, for example, 7019473 + ... + 7019544.

Almost surely, 2505404612 is an apocalyptic number.

It is an amenable number.

505404612 is an abundant number, since it is smaller than the sum of its proper divisors (772146026).

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

505404612 is a wasteful number, since it uses less digits than its factorization.

505404612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14039027 (or 14039022 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 505404612 is about 22481.2057505820. The cubic root of 505404612 is about 796.5500457393.

The spelling of 505404612 in words is "five hundred five million, four hundred four thousand, six hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 14039017 28078034 42117051 56156068 84234102 126351153 168468204 252702306 505404612