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220002430 = 2522000243
BaseRepresentation
bin11010001110011…
…11100001111110
3120022222021121011
431013033201332
5422310034210
633455225434
75310663334
oct1507174176
9508867534
10220002430
1110320509a
126181827a
133676b86b
142130bb54
15144aad8a
hexd1cf87e

220002430 has 8 divisors (see below), whose sum is σ = 396004392. Its totient is φ = 88000968.

The previous prime is 220002427. The next prime is 220002449. The reversal of 220002430 is 34200022.

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

It is a self number, because there is not a number n which added to its sum of digits gives 220002430.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11000112 + ... + 11000131.

It is an arithmetic number, because the mean of its divisors is an integer number (49500549).

Almost surely, 2220002430 is an apocalyptic number.

220002430 is a deficient number, since it is larger than the sum of its proper divisors (176001962).

220002430 is a wasteful number, since it uses less digits than its factorization.

220002430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22000250.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 220002430 is about 14832.4788892484. The cubic root of 220002430 is about 603.6832963155.

Adding to 220002430 its reverse (34200022), we get a palindrome (254202452).

The spelling of 220002430 in words is "two hundred twenty million, two thousand, four hundred thirty".

Divisors: 1 2 5 10 22000243 44000486 110001215 220002430