Search a number
-
+
28230373 = 611912423
BaseRepresentation
bin110101110110…
…0001011100101
31222010020210101
41223230023211
524211332443
62445024101
7461645203
oct153541345
958106711
1028230373
1114a31996
129555031
135b05682
143a6c073
15272984d
hex1aec2e5

28230373 has 8 divisors (see below), whose sum is σ = 28855296. Its totient is φ = 27610800.

The previous prime is 28230359. The next prime is 28230443. The reversal of 28230373 is 37303282.

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 28230373 - 217 = 28099301 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 (28230173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10440 + ... + 12862.

It is an arithmetic number, because the mean of its divisors is an integer number (3606912).

Almost surely, 228230373 is an apocalyptic number.

It is an amenable number.

28230373 is a deficient number, since it is larger than the sum of its proper divisors (624923).

28230373 is a wasteful number, since it uses less digits than its factorization.

28230373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 28230373 is about 5313.2262327140. The cubic root of 28230373 is about 304.4894189699.

It can be divided in two parts, 282303 and 73, that added together give a triangular number (282376 = T751).

The spelling of 28230373 in words is "twenty-eight million, two hundred thirty thousand, three hundred seventy-three".

Divisors: 1 61 191 2423 11651 147803 462793 28230373