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243120014 = 26117311519
BaseRepresentation
bin11100111110110…
…11011110001110
3121221110202221222
432133123132032
5444214320024
640042523342
76011325464
oct1637333616
9557422858
10243120014
11115264735
1269506552
133b4a3cc7
1424408834
151652585e
hexe7db78e

243120014 has 16 divisors (see below), whose sum is σ = 372833280. Its totient is φ = 118865760.

The previous prime is 243119993. The next prime is 243120041. The reversal of 243120014 is 410021342.

It is a junction number, because it is equal to n+sod(n) for n = 243119974 and 243120001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15347 + ... + 26865.

It is an arithmetic number, because the mean of its divisors is an integer number (23302080).

Almost surely, 2243120014 is an apocalyptic number.

243120014 is a deficient number, since it is larger than the sum of its proper divisors (129713266).

243120014 is a wasteful number, since it uses less digits than its factorization.

243120014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11755.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 243120014 is about 15592.3062437857. The cubic root of 243120014 is about 624.1278621804.

Adding to 243120014 its reverse (410021342), we get a palindrome (653141356).

The spelling of 243120014 in words is "two hundred forty-three million, one hundred twenty thousand, fourteen".

Divisors: 1 2 61 122 173 346 10553 11519 21106 23038 702659 1405318 1992787 3985574 121560007 243120014