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28296668652 = 22372027166189
BaseRepresentation
bin11010010110100111…
…001110010111101100
32201001001011201000220
4122112213032113230
5430422421344102
620555503451340
72021134500150
oct322647162754
981031151026
1028296668652
1111000805a7a
1255985b6b50
13288c520425
141526137060
15b093181bc
hex6969ce5ec

28296668652 has 48 divisors (see below), whose sum is σ = 75495463680. Its totient is φ = 8080725312.

The previous prime is 28296668651. The next prime is 28296668671. The reversal of 28296668652 is 25686669282.

It is not an unprimeable number, because it can be changed into a prime (28296668651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87174 + ... + 253362.

It is an arithmetic number, because the mean of its divisors is an integer number (1572822160).

Almost surely, 228296668652 is an apocalyptic number.

It is an amenable number.

28296668652 is an abundant number, since it is smaller than the sum of its proper divisors (47198795028).

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

28296668652 is a wasteful number, since it uses less digits than its factorization.

28296668652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168230 (or 168228 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 60.

The spelling of 28296668652 in words is "twenty-eight billion, two hundred ninety-six million, six hundred sixty-eight thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 2027 4054 6081 8108 12162 14189 24324 28378 42567 56756 85134 166189 170268 332378 498567 664756 997134 1163323 1994268 2326646 3489969 4653292 6979938 13959876 336865103 673730206 1010595309 1347460412 2021190618 2358055721 4042381236 4716111442 7074167163 9432222884 14148334326 28296668652