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242392580 = 22571211809
BaseRepresentation
bin11100111001010…
…01111000000100
3121220002211002222
432130221320010
5444023030310
640015151512
76002205623
oct1634517004
9556084088
10242392580
11114908151
1269215598
133b2aab81
14242996ba
1516430055
hexe729e04

242392580 has 48 divisors (see below), whose sum is σ = 519281280. Its totient is φ = 95020800.

The previous prime is 242392559. The next prime is 242392609. The reversal of 242392580 is 85293242.

It is a self number, because there is not a number n which added to its sum of digits gives 242392580.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299216 + ... + 300024.

It is an arithmetic number, because the mean of its divisors is an integer number (10818360).

Almost surely, 2242392580 is an apocalyptic number.

242392580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242392580 is an abundant number, since it is smaller than the sum of its proper divisors (276888700).

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

242392580 is a wasteful number, since it uses less digits than its factorization.

242392580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 242392580 is about 15568.9620720201. The cubic root of 242392580 is about 623.5047606006.

The spelling of 242392580 in words is "two hundred forty-two million, three hundred ninety-two thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 71 142 211 284 355 422 710 809 844 1055 1420 1618 2110 3236 4045 4220 8090 14981 16180 29962 57439 59924 74905 114878 149810 170699 229756 287195 299620 341398 574390 682796 853495 1148780 1706990 3413980 12119629 24239258 48478516 60598145 121196290 242392580