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242706547 = 1492336991
BaseRepresentation
bin11100111011101…
…10100001110011
3121220200202210101
432131312201303
5444113102142
640030013231
76004654156
oct1635664163
9556622711
10242706547
11115002026
1269347217
133b38aa55
142433bc9d
15164930b7
hexe776873

242706547 has 8 divisors (see below), whose sum is σ = 245419200. Its totient is φ = 240008640.

The previous prime is 242706523. The next prime is 242706587. The reversal of 242706547 is 745607242.

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

It is a de Polignac number, because none of the positive numbers 2k-242706547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242706517) 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 7 ways as a sum of consecutive naturals, for example, 31222 + ... + 38212.

It is an arithmetic number, because the mean of its divisors is an integer number (30677400).

Almost surely, 2242706547 is an apocalyptic number.

242706547 is a deficient number, since it is larger than the sum of its proper divisors (2712653).

242706547 is a wasteful number, since it uses less digits than its factorization.

242706547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7373.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 242706547 is about 15579.0419153425. The cubic root of 242706547 is about 623.7738495010.

It can be divided in two parts, 242706 and 547, that added together give a triangular number (243253 = T697).

The spelling of 242706547 in words is "two hundred forty-two million, seven hundred six thousand, five hundred forty-seven".

Divisors: 1 149 233 6991 34717 1041659 1628903 242706547