Search a number
-
+
28058552 = 233739403
BaseRepresentation
bin110101100001…
…0001110111000
31221210112002122
41223002032320
524140333202
62441220412
7460331234
oct153021670
957715078
1028058552
1114924895
129491708
135a753c2
143a255c4
1526e39a2
hex1ac23b8

28058552 has 16 divisors (see below), whose sum is σ = 52756440. Its totient is φ = 13990176.

The previous prime is 28058549. The next prime is 28058557. The reversal of 28058552 is 25585082.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28058557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1718 + ... + 7685.

Almost surely, 228058552 is an apocalyptic number.

It is an amenable number.

28058552 is a deficient number, since it is larger than the sum of its proper divisors (24697888).

28058552 is a wasteful number, since it uses less digits than its factorization.

28058552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9782 (or 9778 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 35.

The square root of 28058552 is about 5297.0323767181. The cubic root of 28058552 is about 303.8704145296.

The spelling of 28058552 in words is "twenty-eight million, fifty-eight thousand, five hundred fifty-two".

Divisors: 1 2 4 8 373 746 1492 2984 9403 18806 37612 75224 3507319 7014638 14029276 28058552