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242650580 = 22512132529
BaseRepresentation
bin11100111011010…
…00110111010100
3121220120221000112
432131220313110
5444104304310
640024502152
76004332044
oct1635506724
9556527015
10242650580
11114a73a77
126931a958
133b36b433
1424325724
1516481705
hexe768dd4

242650580 has 12 divisors (see below), whose sum is σ = 509566260. Its totient is φ = 97060224.

The previous prime is 242650567. The next prime is 242650607. The reversal of 242650580 is 85056242.

It can be written as a sum of positive squares in 2 ways, for example, as 165842884 + 76807696 = 12878^2 + 8764^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 6066245 + ... + 6066284.

It is an arithmetic number, because the mean of its divisors is an integer number (42463855).

Almost surely, 2242650580 is an apocalyptic number.

242650580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242650580 is an abundant number, since it is smaller than the sum of its proper divisors (266915680).

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

242650580 is a wasteful number, since it uses less digits than its factorization.

242650580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12132538 (or 12132536 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 242650580 is about 15577.2455845056. The cubic root of 242650580 is about 623.7258993664.

The spelling of 242650580 in words is "two hundred forty-two million, six hundred fifty thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 12132529 24265058 48530116 60662645 121325290 242650580