Search a number
-
+
28062276 = 22311212593
BaseRepresentation
bin110101100001…
…1001001000100
31221210201012120
41223003021010
524140443101
62441245540
7460345134
oct153031104
957721176
1028062276
1114927670
1294938b0
135a76cc8
143a26ac4
1526e4b36
hex1ac3244

28062276 has 24 divisors (see below), whose sum is σ = 71431584. Its totient is φ = 8503680.

The previous prime is 28062271. The next prime is 28062283. The reversal of 28062276 is 67226082.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (28062271) 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, 106165 + ... + 106428.

It is an arithmetic number, because the mean of its divisors is an integer number (2976316).

Almost surely, 228062276 is an apocalyptic number.

It is an amenable number.

28062276 is an abundant number, since it is smaller than the sum of its proper divisors (43369308).

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

28062276 is a wasteful number, since it uses less digits than its factorization.

28062276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212611 (or 212609 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 28062276 is about 5297.3838826349. The cubic root of 28062276 is about 303.8838574111.

The spelling of 28062276 in words is "twenty-eight million, sixty-two thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 212593 425186 637779 850372 1275558 2338523 2551116 4677046 7015569 9354092 14031138 28062276