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242220039 = 3222136353
BaseRepresentation
bin11100110111111…
…11110000000111
3121212210001102120
432123333300013
5444002020124
640011341023
76000556605
oct1633776007
9555701376
10242220039
111147aa556
1269151773
133b24a489
1424252875
15163e8d79
hexe6ffc07

242220039 has 8 divisors (see below), whose sum is σ = 323114352. Its totient is φ = 161402880.

The previous prime is 242220031. The next prime is 242220067. The reversal of 242220039 is 930022242.

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

It is not a de Polignac number, because 242220039 - 23 = 242220031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242220031) 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, 11514 + ... + 24839.

It is an arithmetic number, because the mean of its divisors is an integer number (40389294).

Almost surely, 2242220039 is an apocalyptic number.

242220039 is a deficient number, since it is larger than the sum of its proper divisors (80894313).

242220039 is a wasteful number, since it uses less digits than its factorization.

242220039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38577.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 242220039 is about 15563.4199005231. The cubic root of 242220039 is about 623.3567834760.

The spelling of 242220039 in words is "two hundred forty-two million, two hundred twenty thousand, thirty-nine".

Divisors: 1 3 2221 6663 36353 109059 80740013 242220039