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242424660 = 22354040411
BaseRepresentation
bin11100111001100…
…01101101010100
3121220011110010010
432130301231110
5444030042120
640020000220
76002401302
oct1634615524
9556143103
10242424660
1111492a265
1269230070
133b2bc65a
14242a7272
15164397e0
hexe731b54

242424660 has 24 divisors (see below), whose sum is σ = 678789216. Its totient is φ = 64646560.

The previous prime is 242424653. The next prime is 242424661. The reversal of 242424660 is 66424242.

It is a super-2 number, since 2×2424246602 = 117539431552231200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242424661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2020146 + ... + 2020265.

It is an arithmetic number, because the mean of its divisors is an integer number (28282884).

Almost surely, 2242424660 is an apocalyptic number.

242424660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242424660 is an abundant number, since it is smaller than the sum of its proper divisors (436364556).

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

242424660 is a wasteful number, since it uses less digits than its factorization.

242424660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040423 (or 4040421 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 242424660 is about 15569.9922928690. The cubic root of 242424660 is about 623.5322657748.

The spelling of 242424660 in words is "two hundred forty-two million, four hundred twenty-four thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4040411 8080822 12121233 16161644 20202055 24242466 40404110 48484932 60606165 80808220 121212330 242424660