Search a number
-
+
28747076 = 22193710223
BaseRepresentation
bin110110110101…
…0010101000100
32000002111120112
41231222111010
524324401301
62504052152
7466226501
oct155522504
960074515
1028747076
1115255116
129764058
135c56907
143b644a8
1527cc9bb
hex1b6a544

28747076 has 24 divisors (see below), whose sum is σ = 54391680. Its totient is φ = 13247712.

The previous prime is 28747067. The next prime is 28747093. The reversal of 28747076 is 67074782.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2300 + ... + 7923.

It is an arithmetic number, because the mean of its divisors is an integer number (2266320).

Almost surely, 228747076 is an apocalyptic number.

It is an amenable number.

28747076 is a deficient number, since it is larger than the sum of its proper divisors (25644604).

28747076 is a wasteful number, since it uses less digits than its factorization.

28747076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10283 (or 10281 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 28747076 is about 5361.6299760427. The cubic root of 28747076 is about 306.3358978263.

The spelling of 28747076 in words is "twenty-eight million, seven hundred forty-seven thousand, seventy-six".

Divisors: 1 2 4 19 37 38 74 76 148 703 1406 2812 10223 20446 40892 194237 378251 388474 756502 776948 1513004 7186769 14373538 28747076