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242333140 = 225712131427
BaseRepresentation
bin11100111000110…
…11010111010100
3121212222210120111
432130123113110
5444014130030
640014012404
76001540420
oct1634332724
9555883514
10242333140
11114877525
12691a7104
133b289aba
1424281b80
151641c62a
hexe71b5d4

242333140 has 48 divisors (see below), whose sum is σ = 582486912. Its totient is φ = 82958976.

The previous prime is 242333137. The next prime is 242333149. The reversal of 242333140 is 41333242.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242333149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169107 + ... + 170533.

It is an arithmetic number, because the mean of its divisors is an integer number (12135144).

Almost surely, 2242333140 is an apocalyptic number.

242333140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242333140 is an abundant number, since it is smaller than the sum of its proper divisors (340153772).

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

242333140 is a wasteful number, since it uses less digits than its factorization.

242333140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656 (or 2654 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 242333140 is about 15567.0530287527. The cubic root of 242333140 is about 623.4537907335.

Adding to 242333140 its reverse (41333242), we get a palindrome (283666382).

The spelling of 242333140 in words is "two hundred forty-two million, three hundred thirty-three thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1213 1427 2426 2854 4852 5708 6065 7135 8491 9989 12130 14270 16982 19978 24260 28540 33964 39956 42455 49945 84910 99890 169820 199780 1730951 3461902 6923804 8654755 12116657 17309510 24233314 34619020 48466628 60583285 121166570 242333140