Search a number
-
+
28402341 = 3118531009
BaseRepresentation
bin110110001011…
…0001010100101
31222102222200120
41230112022211
524232333331
62452432153
7463262442
oct154261245
958388616
1028402341
111503a110
129618659
135b65a26
143ab49c9
152760796
hex1b162a5

28402341 has 16 divisors (see below), whose sum is σ = 41401920. Its totient is φ = 17176320.

The previous prime is 28402337. The next prime is 28402357. The reversal of 28402341 is 14320482.

It is not a de Polignac number, because 28402341 - 22 = 28402337 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28402331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27645 + ... + 28653.

It is an arithmetic number, because the mean of its divisors is an integer number (2587620).

Almost surely, 228402341 is an apocalyptic number.

It is an amenable number.

28402341 is a deficient number, since it is larger than the sum of its proper divisors (12999579).

28402341 is a wasteful number, since it uses less digits than its factorization.

28402341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 28402341 is about 5329.3846736748. The cubic root of 28402341 is about 305.1064431845.

The spelling of 28402341 in words is "twenty-eight million, four hundred two thousand, three hundred forty-one".

Divisors: 1 3 11 33 853 1009 2559 3027 9383 11099 28149 33297 860677 2582031 9467447 28402341