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2420078245 = 51337231973
BaseRepresentation
bin1001000000111111…
…0111011010100101
320020122210201020121
42100033313122211
514424020000440
61040050401541
7113654216464
oct22017673245
96218721217
102420078245
111032086672
125765902b1
132c74c8880
1418d5a89db
15e26e034a
hex903f76a5

2420078245 has 8 divisors (see below), whose sum is σ = 3127485816. Its totient is φ = 1787134656.

The previous prime is 2420078233. The next prime is 2420078249. The reversal of 2420078245 is 5428700242.

It can be written as a sum of positive squares in 4 ways, for example, as 515017636 + 1905060609 = 22694^2 + 43647^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2420078245 - 27 = 2420078117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2420078245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420078249) 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 7 ways as a sum of consecutive naturals, for example, 18615922 + ... + 18616051.

It is an arithmetic number, because the mean of its divisors is an integer number (390935727).

Almost surely, 22420078245 is an apocalyptic number.

It is an amenable number.

2420078245 is a deficient number, since it is larger than the sum of its proper divisors (707407571).

2420078245 is a wasteful number, since it uses less digits than its factorization.

2420078245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37231991.

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 2420078245 is about 49194.2907764712. The cubic root of 2420078245 is about 1342.5891584248.

Adding to 2420078245 its reverse (5428700242), we get a palindrome (7848778487).

The spelling of 2420078245 in words is "two billion, four hundred twenty million, seventy-eight thousand, two hundred forty-five".

Divisors: 1 5 13 65 37231973 186159865 484015649 2420078245