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2428247279 = 2692190199
BaseRepresentation
bin1001000010111100…
…0001110011101111
320021020011202001102
42100233001303233
514433112403104
61040541433315
7114113522063
oct22057016357
96236152042
102428247279
111036756137
1257926b83b
132c90c8c13
141906d3aa3
15e32a5a1e
hex90bc1cef

2428247279 has 4 divisors (see below), whose sum is σ = 2428364400. Its totient is φ = 2428130160.

The previous prime is 2428247249. The next prime is 2428247293. The reversal of 2428247279 is 9727428242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2428247279 - 212 = 2428243183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2428247249) 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 3 ways as a sum of consecutive naturals, for example, 18179 + ... + 72020.

It is an arithmetic number, because the mean of its divisors is an integer number (607091100).

Almost surely, 22428247279 is an apocalyptic number.

2428247279 is a deficient number, since it is larger than the sum of its proper divisors (117121).

2428247279 is an equidigital number, since it uses as much as digits as its factorization.

2428247279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117120.

The product of its digits is 903168, while the sum is 47.

The square root of 2428247279 is about 49277.2491013855. The cubic root of 2428247279 is about 1344.0981095044.

The spelling of 2428247279 in words is "two billion, four hundred twenty-eight million, two hundred forty-seven thousand, two hundred seventy-nine".

Divisors: 1 26921 90199 2428247279