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28095396 = 22371931733
BaseRepresentation
bin110101100101…
…1001110100100
31221212101122020
41223023032210
524143023041
62442103140
7460543530
oct153131644
957771566
1028095396
111494a53a
1294aaab0
135a890c4
143a34bc0
1526ee866
hex1acb3a4

28095396 has 48 divisors (see below), whose sum is σ = 75352704. Its totient is φ = 7981056.

The previous prime is 28095377. The next prime is 28095401. The reversal of 28095396 is 69359082.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15346 + ... + 17078.

It is an arithmetic number, because the mean of its divisors is an integer number (1569848).

Almost surely, 228095396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28095396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37676352).

28095396 is an abundant number, since it is smaller than the sum of its proper divisors (47257308).

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

28095396 is a wasteful number, since it uses less digits than its factorization.

28095396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940 (or 1938 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 28095396 is about 5300.5090321591. The cubic root of 28095396 is about 304.0033615741.

The spelling of 28095396 in words is "twenty-eight million, ninety-five thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 193 386 579 772 1158 1351 1733 2316 2702 3466 4053 5199 5404 6932 8106 10398 12131 16212 20796 24262 36393 48524 72786 145572 334469 668938 1003407 1337876 2006814 2341283 4013628 4682566 7023849 9365132 14047698 28095396