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242764885 = 51123434463
BaseRepresentation
bin11100111100001…
…00110001010101
3121220210201211001
432132010301111
5444121434020
640031143301
76005316226
oct1636046125
9556721731
10242764885
11115041940
1269374b31
133b3ab47c
142435524d
15164a550a
hexe784c55

242764885 has 32 divisors (see below), whose sum is σ = 339406848. Its totient is φ = 164915520.

The previous prime is 242764859. The next prime is 242764889. The reversal of 242764885 is 588467242.

242764885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242764885 - 25 = 242764853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242764889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52164 + ... + 56626.

It is an arithmetic number, because the mean of its divisors is an integer number (10606464).

Almost surely, 2242764885 is an apocalyptic number.

It is an amenable number.

242764885 is a deficient number, since it is larger than the sum of its proper divisors (96641963).

242764885 is a wasteful number, since it uses less digits than its factorization.

242764885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545.

The product of its digits is 860160, while the sum is 46.

The square root of 242764885 is about 15580.9141259427. The cubic root of 242764885 is about 623.8238231613.

It can be divided in two parts, 24276 and 4885, that added together give a triangular number (29161 = T241).

The spelling of 242764885 in words is "two hundred forty-two million, seven hundred sixty-four thousand, eight hundred eighty-five".

Divisors: 1 5 11 23 43 55 115 215 253 473 989 1265 2365 4463 4945 10879 22315 49093 54395 102649 191909 245465 513245 959545 1129139 2110999 4413907 5645695 10554995 22069535 48552977 242764885