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28632984044 = 227792163853
BaseRepresentation
bin11010101010101010…
…001010100111101100
32201220111000022000112
4122222222022213230
5432120020442134
621053120115152
72032360230410
oct325252124754
981814008015
1028632984044
1111163633785
125671165ab8
1329140c4912
141558a80d40
15b28aec1ce
hex6aaa8a9ec

28632984044 has 36 divisors (see below), whose sum is σ = 58000383504. Its totient is φ = 12115872288.

The previous prime is 28632984011. The next prime is 28632984047. The reversal of 28632984044 is 44048923682.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28632983983 and 28632984001.

It is not an unprimeable number, because it can be changed into a prime (28632984047) 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, 92822 + ... + 256674.

It is an arithmetic number, because the mean of its divisors is an integer number (1611121764).

Almost surely, 228632984044 is an apocalyptic number.

It is an amenable number.

28632984044 is an abundant number, since it is smaller than the sum of its proper divisors (29367399460).

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

28632984044 is a wasteful number, since it uses less digits than its factorization.

28632984044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164022 (or 163941 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 28632984044 in words is "twenty-eight billion, six hundred thirty-two million, nine hundred eighty-four thousand, forty-four".

Divisors: 1 2 4 7 14 28 79 158 316 553 1106 2212 6241 12482 24964 43687 87374 163853 174748 327706 655412 1146971 2293942 4587884 12944387 25888774 51777548 90610709 181221418 362442836 1022606573 2045213146 4090426292 7158246011 14316492022 28632984044