Search a number
-
+
28796544 = 273273571
BaseRepresentation
bin110110111011…
…0011010000000
32000012000102200
41231312122000
524332442134
62505113200
7466523640
oct155663200
960160380
1028796544
11152892a7
129788800
135c7329a
143b78520
1527dc499
hex1b76680

28796544 has 96 divisors (see below), whose sum is σ = 94729440. Its totient is φ = 8225280.

The previous prime is 28796519. The next prime is 28796563. The reversal of 28796544 is 44569782.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 28796544.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6279 + ... + 9849.

It is an arithmetic number, because the mean of its divisors is an integer number (986765).

Almost surely, 228796544 is an apocalyptic number.

28796544 is a gapful number since it is divisible by the number (24) 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 28796544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47364720).

28796544 is an abundant number, since it is smaller than the sum of its proper divisors (65932896).

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

28796544 is a wasteful number, since it uses less digits than its factorization.

28796544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3598 (or 3583 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 28796544 is about 5366.2411425503. The cubic root of 28796544 is about 306.5115115160.

The spelling of 28796544 in words is "twenty-eight million, seven hundred ninety-six thousand, five hundred forty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 128 144 168 192 224 252 288 336 384 448 504 576 672 896 1008 1152 1344 2016 2688 3571 4032 7142 8064 10713 14284 21426 24997 28568 32139 42852 49994 57136 64278 74991 85704 99988 114272 128556 149982 171408 199976 224973 228544 257112 299964 342816 399952 449946 457088 514224 599928 685632 799904 899892 1028448 1199856 1371264 1599808 1799784 2056896 2399712 3199616 3599568 4113792 4799424 7199136 9598848 14398272 28796544