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28113828276 = 2235979502643
BaseRepresentation
bin11010001011101101…
…101111100110110100
32200120022010110012010
4122023231233212310
5430034120001101
620525412524220
72013454411632
oct321355574664
980508113163
1028113828276
1110a17583326
125547320670
132860693761
141509b40352
15ae824d2d6
hex68bb6f9b4

28113828276 has 48 divisors (see below), whose sum is σ = 67555353600. Its totient is φ = 9095809632.

The previous prime is 28113828271. The next prime is 28113828311. The reversal of 28113828276 is 67282831182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28113828271) 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, 195390 + ... + 307253.

It is an arithmetic number, because the mean of its divisors is an integer number (1407403200).

Almost surely, 228113828276 is an apocalyptic number.

It is an amenable number.

28113828276 is an abundant number, since it is smaller than the sum of its proper divisors (39441525324).

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

28113828276 is a wasteful number, since it uses less digits than its factorization.

28113828276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502788 (or 502786 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The spelling of 28113828276 in words is "twenty-eight billion, one hundred thirteen million, eight hundred twenty-eight thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 12 59 79 118 158 177 236 237 316 354 474 708 948 4661 9322 13983 18644 27966 55932 502643 1005286 1507929 2010572 3015858 6031716 29655937 39708797 59311874 79417594 88967811 118623748 119126391 158835188 177935622 238252782 355871244 476505564 2342819023 4685638046 7028457069 9371276092 14056914138 28113828276