Search a number
-
+
8838699421 = 18714724051
BaseRepresentation
bin10000011101101001…
…11101100110011101
3211210222120110012211
420032310331212131
5121100201340141
64021020000421
7432013463656
oct101664754635
924728513184
108838699421
113826240772
121868090111
13aab225876
145dbc2852d
1536ae68d81
hex20ed3d99d

8838699421 has 4 divisors (see below), whose sum is σ = 8843425344. Its totient is φ = 8833973500.

The previous prime is 8838699413. The next prime is 8838699437. The reversal of 8838699421 is 1249968388.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8838699421 - 23 = 8838699413 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 (8838693421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2360155 + ... + 2363896.

It is an arithmetic number, because the mean of its divisors is an integer number (2210856336).

Almost surely, 28838699421 is an apocalyptic number.

It is an amenable number.

8838699421 is a deficient number, since it is larger than the sum of its proper divisors (4725923).

8838699421 is a wasteful number, since it uses less digits than its factorization.

8838699421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725922.

The product of its digits is 5971968, while the sum is 58.

The square root of 8838699421 is about 94014.3575258588. The cubic root of 8838699421 is about 2067.5822176725.

The spelling of 8838699421 in words is "eight billion, eight hundred thirty-eight million, six hundred ninety-nine thousand, four hundred twenty-one".

Divisors: 1 1871 4724051 8838699421