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4678245987 = 319310926399
BaseRepresentation
bin1000101101101100…
…00101111001100011
3110002000221112000220
410112312011321203
534040112332422
62052115014123
7223634302062
oct42666057143
913060845026
104678245987
111a908254a8
12aa689a343
135972b51bc
143254681d9
151c5a9be5c
hex116d85e63

4678245987 has 16 divisors (see below), whose sum is σ = 6568320000. Its totient is φ = 2953619424.

The previous prime is 4678245973. The next prime is 4678246007. The reversal of 4678245987 is 7895428764.

It is a happy number.

It is not a de Polignac number, because 4678245987 - 212 = 4678241891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4678245987.

It is not an unprimeable number, because it can be changed into a prime (4678245907) 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 15 ways as a sum of consecutive naturals, for example, 164014 + ... + 190412.

It is an arithmetic number, because the mean of its divisors is an integer number (410520000).

Almost surely, 24678245987 is an apocalyptic number.

4678245987 is a deficient number, since it is larger than the sum of its proper divisors (1890074013).

4678245987 is a wasteful number, since it uses less digits than its factorization.

4678245987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29530.

The product of its digits is 27095040, while the sum is 60.

The square root of 4678245987 is about 68397.7045448164. The cubic root of 4678245987 is about 1672.4803267855.

The spelling of 4678245987 in words is "four billion, six hundred seventy-eight million, two hundred forty-five thousand, nine hundred eighty-seven".

Divisors: 1 3 19 57 3109 9327 26399 59071 79197 177213 501581 1504743 82074491 246223473 1559415329 4678245987