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242695931 = 2331340387
BaseRepresentation
bin11100111011100…
…11111011111011
3121220200020020012
432131303323323
5444112232211
640025452135
76004611212
oct1635637373
9556606205
10242695931
11114aa5055
126934104b
133b385c7a
1424338079
151648ed8b
hexe773efb

242695931 has 8 divisors (see below), whose sum is σ = 261417984. Its totient is φ = 224654760.

The previous prime is 242695919. The next prime is 242695951. The reversal of 242695931 is 139596242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-242695931 is a prime.

It is a super-4 number, since 4×2426959314 (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242695951) 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, 169481 + ... + 170906.

It is an arithmetic number, because the mean of its divisors is an integer number (32677248).

Almost surely, 2242695931 is an apocalyptic number.

242695931 is a deficient number, since it is larger than the sum of its proper divisors (18722053).

242695931 is a wasteful number, since it uses less digits than its factorization.

242695931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340441.

The product of its digits is 116640, while the sum is 41.

The square root of 242695931 is about 15578.7011974683. The cubic root of 242695931 is about 623.7647547323.

The spelling of 242695931 in words is "two hundred forty-two million, six hundred ninety-five thousand, nine hundred thirty-one".

Divisors: 1 23 31 713 340387 7828901 10551997 242695931