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505630542 = 23974391979
BaseRepresentation
bin11110001000110…
…100111101001110
31022020102200201010
4132020310331032
52013420134132
6122101230050
715346534344
oct3610647516
91266380633
10505630542
1123a46278a
12121402326
13809a6b91
144b21d994
152e5cb6cc
hex1e234f4e

505630542 has 32 divisors (see below), whose sum is σ = 1024531200. Its totient is φ = 166341888.

The previous prime is 505630523. The next prime is 505630549. The reversal of 505630542 is 245036505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505630549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254509 + ... + 256487.

It is an arithmetic number, because the mean of its divisors is an integer number (32016600).

Almost surely, 2505630542 is an apocalyptic number.

505630542 is an abundant number, since it is smaller than the sum of its proper divisors (518900658).

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

505630542 is a wasteful number, since it uses less digits than its factorization.

505630542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 505630542 is about 22486.2300530792. The cubic root of 505630542 is about 796.6687214418.

The spelling of 505630542 in words is "five hundred five million, six hundred thirty thousand, five hundred forty-two".

Divisors: 1 2 3 6 97 194 291 439 582 878 1317 1979 2634 3958 5937 11874 42583 85166 127749 191963 255498 383926 575889 868781 1151778 1737562 2606343 5212686 84271757 168543514 252815271 505630542