Search a number
-
+
242544460 = 22512127223
BaseRepresentation
bin11100111010011…
…10111101001100
3121220101112110011
432131032331030
5444042410320
640022323004
76003410464
oct1635167514
9556345404
10242544460
11114a01274
1269289464
133b332042
14242d8ba4
151646005a
hexe74ef4c

242544460 has 12 divisors (see below), whose sum is σ = 509343408. Its totient is φ = 97017776.

The previous prime is 242544413. The next prime is 242544469. The reversal of 242544460 is 64445242.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (242544469) 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 3 ways as a sum of consecutive naturals, for example, 6063592 + ... + 6063631.

It is an arithmetic number, because the mean of its divisors is an integer number (42445284).

Almost surely, 2242544460 is an apocalyptic number.

242544460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242544460 is an abundant number, since it is smaller than the sum of its proper divisors (266798948).

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

242544460 is a wasteful number, since it uses less digits than its factorization.

242544460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12127232 (or 12127230 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 242544460 is about 15573.8389615406. The cubic root of 242544460 is about 623.6349600359.

The spelling of 242544460 in words is "two hundred forty-two million, five hundred forty-four thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 12127223 24254446 48508892 60636115 121272230 242544460