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505250008 = 23191330661
BaseRepresentation
bin11110000111011…
…000000011011000
31022012201100201021
4132013120003120
52013321000013
6122045132224
715343361044
oct3607300330
91265640637
10505250008
1123a22289a
1212125a074
13808a2903
144b161024
152e553a8d
hex1e1d80d8

505250008 has 16 divisors (see below), whose sum is σ = 952306560. Its totient is φ = 251301600.

The previous prime is 505250003. The next prime is 505250023. The reversal of 505250008 is 800052505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505250003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163803 + ... + 166858.

It is an arithmetic number, because the mean of its divisors is an integer number (59519160).

Almost surely, 2505250008 is an apocalyptic number.

It is an amenable number.

505250008 is a deficient number, since it is larger than the sum of its proper divisors (447056552).

505250008 is a wasteful number, since it uses less digits than its factorization.

505250008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330858 (or 330854 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 505250008 is about 22477.7669709426. The cubic root of 505250008 is about 796.4688155198.

The spelling of 505250008 in words is "five hundred five million, two hundred fifty thousand, eight".

Divisors: 1 2 4 8 191 382 764 1528 330661 661322 1322644 2645288 63156251 126312502 252625004 505250008