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242345307 = 380781769
BaseRepresentation
bin11100111000111…
…10010101011011
3121220000102021010
432130132111123
5444020022212
640014145003
76001621041
oct1634362533
9556012233
10242345307
11114885686
12691b2163
133b2924b9
1424286391
151642103c
hexe71e55b

242345307 has 4 divisors (see below), whose sum is σ = 323127080. Its totient is φ = 161563536.

The previous prime is 242345297. The next prime is 242345329. The reversal of 242345307 is 703543242.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 242345307 - 211 = 242343259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242345347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40390882 + ... + 40390887.

It is an arithmetic number, because the mean of its divisors is an integer number (80781770).

Almost surely, 2242345307 is an apocalyptic number.

242345307 is a deficient number, since it is larger than the sum of its proper divisors (80781773).

242345307 is an equidigital number, since it uses as much as digits as its factorization.

242345307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80781772.

The product of its (nonzero) digits is 20160, while the sum is 30.

The square root of 242345307 is about 15567.4438171461. The cubic root of 242345307 is about 623.4642246281.

Adding to 242345307 its reverse (703543242), we get a palindrome (945888549).

The spelling of 242345307 in words is "two hundred forty-two million, three hundred forty-five thousand, three hundred seven".

Divisors: 1 3 80781769 242345307