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2978240713 = 75344318121
BaseRepresentation
bin1011000110000100…
…0101100011001001
321200120002022012121
42301201011203021
522044412200323
61211310011241
7133542425350
oct26141054311
97616068177
102978240713
111299159368
126b14a6b21
13386036416
14203780997
151266e6a5d
hexb18458c9

2978240713 has 16 divisors (see below), whose sum is σ = 3475944576. Its totient is φ = 2498820480.

The previous prime is 2978240701. The next prime is 2978240719. The reversal of 2978240713 is 3170428792.

It is a cyclic number.

It is not a de Polignac number, because 2978240713 - 29 = 2978240201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2978240713.

It is not an unprimeable number, because it can be changed into a prime (2978240719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155293 + ... + 173413.

It is an arithmetic number, because the mean of its divisors is an integer number (217246536).

Almost surely, 22978240713 is an apocalyptic number.

It is an amenable number.

2978240713 is a deficient number, since it is larger than the sum of its proper divisors (497703863).

2978240713 is a wasteful number, since it uses less digits than its factorization.

2978240713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18624.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 2978240713 is about 54573.2600547191. The cubic root of 2978240713 is about 1438.7541811366.

The spelling of 2978240713 in words is "two billion, nine hundred seventy-eight million, two hundred forty thousand, seven hundred thirteen".

Divisors: 1 7 53 371 443 3101 18121 23479 126847 164353 960413 6722891 8027603 56193221 425462959 2978240713