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242975937 = 380991979
BaseRepresentation
bin11100111101110…
…00010011000001
3121221012110022210
432132320103001
5444200212222
640035452333
76010155441
oct1636702301
9557173283
10242975937
11115176466
12694570a9
133b453559
14243ac121
15164e7d0c
hexe7b84c1

242975937 has 4 divisors (see below), whose sum is σ = 323967920. Its totient is φ = 161983956.

The previous prime is 242975911. The next prime is 242976001. The reversal of 242975937 is 739579242.

242975937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 242975937 - 27 = 242975809 is a prime.

It is a super-2 number, since 2×2429759372 = 118074611922055938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242975437) 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, 40495987 + ... + 40495992.

It is an arithmetic number, because the mean of its divisors is an integer number (80991980).

Almost surely, 2242975937 is an apocalyptic number.

It is an amenable number.

242975937 is a deficient number, since it is larger than the sum of its proper divisors (80991983).

242975937 is an equidigital number, since it uses as much as digits as its factorization.

242975937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80991982.

The product of its digits is 952560, while the sum is 48.

The square root of 242975937 is about 15587.6854279268. The cubic root of 242975937 is about 624.0045482698.

The spelling of 242975937 in words is "two hundred forty-two million, nine hundred seventy-five thousand, nine hundred thirty-seven".

Divisors: 1 3 80991979 242975937