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242807345 = 51117318377
BaseRepresentation
bin11100111100011…
…11001000110001
3121220212220001122
432132033020301
5444124313340
640032112025
76005554064
oct1636171061
9556786048
10242807345
11115070830
1269395615
133b3c48b1
14243668db
15164b2db5
hexe78f231

242807345 has 32 divisors (see below), whose sum is σ = 347452416. Its totient is φ = 160819200.

The previous prime is 242807339. The next prime is 242807353. The reversal of 242807345 is 543708242.

It is not a de Polignac number, because 242807345 - 24 = 242807329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24797 + ... + 33173.

It is an arithmetic number, because the mean of its divisors is an integer number (10857888).

Almost surely, 2242807345 is an apocalyptic number.

It is an amenable number.

242807345 is a deficient number, since it is larger than the sum of its proper divisors (104645071).

242807345 is a wasteful number, since it uses less digits than its factorization.

242807345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8441.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 242807345 is about 15582.2766308393. The cubic root of 242807345 is about 623.8601903312.

The spelling of 242807345 in words is "two hundred forty-two million, eight hundred seven thousand, three hundred forty-five".

Divisors: 1 5 11 17 31 55 85 155 187 341 527 935 1705 2635 5797 8377 28985 41885 92147 142409 259687 460735 712045 1298435 1566499 2856557 4414679 7832495 14282785 22073395 48561469 242807345