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242307589 = 1912753031
BaseRepresentation
bin11100111000101…
…01001000000101
3121212221111112011
432130111020011
5444012320324
640013254221
76001403056
oct1634251005
9555844464
10242307589
1111485a307
1269194371
133b27b294
142427672d
1516414c94
hexe715205

242307589 has 4 divisors (see below), whose sum is σ = 255060640. Its totient is φ = 229554540.

The previous prime is 242307587. The next prime is 242307601. The reversal of 242307589 is 985703242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242307589 - 21 = 242307587 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242307587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6376497 + ... + 6376534.

It is an arithmetic number, because the mean of its divisors is an integer number (63765160).

Almost surely, 2242307589 is an apocalyptic number.

It is an amenable number.

242307589 is a deficient number, since it is larger than the sum of its proper divisors (12753051).

242307589 is a wasteful number, since it uses less digits than its factorization.

242307589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12753050.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 242307589 is about 15566.2323315567. The cubic root of 242307589 is about 623.4318781607.

The spelling of 242307589 in words is "two hundred forty-two million, three hundred seven thousand, five hundred eighty-nine".

Divisors: 1 19 12753031 242307589