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242577807 = 3194255751
BaseRepresentation
bin11100111010101…
…11000110001111
3121220110020012020
432131113012033
5444044442212
640023141223
76003606633
oct1635270617
9556406166
10242577807
11114a2432a
12692a4813
133b344284
1424306dc3
1516469d8c
hexe75718f

242577807 has 8 divisors (see below), whose sum is σ = 340460160. Its totient is φ = 153207000.

The previous prime is 242577799. The next prime is 242577833. The reversal of 242577807 is 708775242.

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

It is not a de Polignac number, because 242577807 - 23 = 242577799 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242577877) 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, 2127819 + ... + 2127932.

It is an arithmetic number, because the mean of its divisors is an integer number (42557520).

Almost surely, 2242577807 is an apocalyptic number.

242577807 is a deficient number, since it is larger than the sum of its proper divisors (97882353).

242577807 is a wasteful number, since it uses less digits than its factorization.

242577807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255773.

The product of its (nonzero) digits is 219520, while the sum is 42.

The square root of 242577807 is about 15574.9095342477. The cubic root of 242577807 is about 623.6635395412.

The spelling of 242577807 in words is "two hundred forty-two million, five hundred seventy-seven thousand, eight hundred seven".

Divisors: 1 3 19 57 4255751 12767253 80859269 242577807