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28056268746 = 232111182111987
BaseRepresentation
bin11010001000010010…
…001010111111001010
32200102021211010100200
4122020102022333022
5424424401044441
620515555113030
72012155230612
oct321022127712
980367733320
1028056268746
1110998039a70
12552bba2776
13285178c56c
141502239a42
15ae317d7b6
hex68848afca

28056268746 has 48 divisors (see below), whose sum is σ = 66325959648. Its totient is φ = 8500471200.

The previous prime is 28056268741. The next prime is 28056268763. The reversal of 28056268746 is 64786265082.

28056268746 is a `hidden beast` number, since 2 + 8 + 0 + 5 + 626 + 8 + 7 + 4 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28056268692 and 28056268701.

It is not an unprimeable number, because it can be changed into a prime (28056268741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2334565 + ... + 2346551.

It is an arithmetic number, because the mean of its divisors is an integer number (1381790826).

Almost surely, 228056268746 is an apocalyptic number.

28056268746 is an abundant number, since it is smaller than the sum of its proper divisors (38269690902).

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

28056268746 is a wasteful number, since it uses less digits than its factorization.

28056268746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23827 (or 23824 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 28056268746 in words is "twenty-eight billion, fifty-six million, two hundred sixty-eight thousand, seven hundred forty-six".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 11821 11987 23642 23974 35463 35961 70926 71922 106389 107883 130031 131857 212778 215766 260062 263714 390093 395571 780186 791142 1170279 1186713 2340558 2373426 141698327 283396654 425094981 850189962 1275284943 1558681597 2550569886 3117363194 4676044791 9352089582 14028134373 28056268746