Search a number
-
+
28926716 = 2271326113
BaseRepresentation
bin110111001011…
…0001011111100
32000102121222212
41232112023330
524401123331
62511555552
7500605310
oct156261374
960377885
1028926716
1115368085
12982bbb8
135cba600
143badb40
152815d2b
hex1b962fc

28926716 has 36 divisors (see below), whose sum is σ = 62656272. Its totient is φ = 11441664.

The previous prime is 28926713. The next prime is 28926727. The reversal of 28926716 is 61762982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28926713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1676 + ... + 7788.

It is an arithmetic number, because the mean of its divisors is an integer number (1740452).

Almost surely, 228926716 is an apocalyptic number.

28926716 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28926716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31328136).

28926716 is an abundant number, since it is smaller than the sum of its proper divisors (33729556).

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

28926716 is a wasteful number, since it uses less digits than its factorization.

28926716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6150 (or 6135 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 28926716 is about 5378.3562544703. The cubic root of 28926716 is about 306.9726692487.

The spelling of 28926716 in words is "twenty-eight million, nine hundred twenty-six thousand, seven hundred sixteen".

Divisors: 1 2 4 7 13 14 26 28 52 91 169 182 338 364 676 1183 2366 4732 6113 12226 24452 42791 79469 85582 158938 171164 317876 556283 1033097 1112566 2066194 2225132 4132388 7231679 14463358 28926716