Search a number
-
+
242808512 = 267351971
BaseRepresentation
bin11100111100011…
…11011011000000
3121220212221122212
432132033123000
5444124333022
640032121252
76005560352
oct1636173300
9556787585
10242808512
111150716a1
1269396228
133b3c529b
14243670d2
15164b33e2
hexe78f6c0

242808512 has 28 divisors (see below), whose sum is σ = 488432856. Its totient is φ = 119738880.

The previous prime is 242808499. The next prime is 242808547. The reversal of 242808512 is 215808242.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21314 + ... + 30657.

Almost surely, 2242808512 is an apocalyptic number.

It is an amenable number.

242808512 is an abundant number, since it is smaller than the sum of its proper divisors (245624344).

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

242808512 is an equidigital number, since it uses as much as digits as its factorization.

242808512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52056 (or 52046 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 242808512 is about 15582.3140771838. The cubic root of 242808512 is about 623.8611898118.

The spelling of 242808512 in words is "two hundred forty-two million, eight hundred eight thousand, five hundred twelve".

Divisors: 1 2 4 8 16 32 64 73 146 292 584 1168 2336 4672 51971 103942 207884 415768 831536 1663072 3326144 3793883 7587766 15175532 30351064 60702128 121404256 242808512