Search a number
-
+
28916552 = 2373116657
BaseRepresentation
bin110111001001…
…1101101001000
32000102010001102
41232103231020
524400312202
62511440532
7500533550
oct156235510
960363042
1028916552
1115360485
129826148
135cb5ab2
143baa160
152812d02
hex1b93b48

28916552 has 32 divisors (see below), whose sum is σ = 63966720. Its totient is φ = 11992320.

The previous prime is 28916539. The next prime is 28916557. The reversal of 28916552 is 25561982.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28916557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6593 + ... + 10064.

It is an arithmetic number, because the mean of its divisors is an integer number (1998960).

Almost surely, 228916552 is an apocalyptic number.

It is an amenable number.

28916552 is an abundant number, since it is smaller than the sum of its proper divisors (35050168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28916552 is a wasteful number, since it uses less digits than its factorization.

28916552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16701 (or 16697 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The square root of 28916552 is about 5377.4112730941. The cubic root of 28916552 is about 306.9367113045.

The spelling of 28916552 in words is "twenty-eight million, nine hundred sixteen thousand, five hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 31 56 62 124 217 248 434 868 1736 16657 33314 66628 116599 133256 233198 466396 516367 932792 1032734 2065468 3614569 4130936 7229138 14458276 28916552