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28083283636 = 22239710928871
BaseRepresentation
bin11010001001111001…
…001110011010110100
32200111011122121211011
4122021321032122310
5430003310034021
620522402122004
72012633654332
oct321171163264
980434577734
1028083283636
1110a01310721
125539050304
13285725a8c5
141505a6cb52
15ae5717de1
hex689e4e6b4

28083283636 has 48 divisors (see below), whose sum is σ = 52288346880. Its totient is φ = 13170263040.

The previous prime is 28083283633. The next prime is 28083283673. The reversal of 28083283636 is 63638238082.

It is a self number, because there is not a number n which added to its sum of digits gives 28083283636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28083283633) 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, 958281 + ... + 987151.

It is an arithmetic number, because the mean of its divisors is an integer number (1089340560).

Almost surely, 228083283636 is an apocalyptic number.

It is an amenable number.

28083283636 is a deficient number, since it is larger than the sum of its proper divisors (24205063244).

28083283636 is a wasteful number, since it uses less digits than its factorization.

28083283636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29104 (or 29102 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 28083283636 in words is "twenty-eight billion, eighty-three million, two hundred eighty-three thousand, six hundred thirty-six".

Divisors: 1 2 4 23 46 92 97 109 194 218 388 436 2231 2507 4462 5014 8924 10028 10573 21146 28871 42292 57742 115484 243179 486358 664033 972716 1328066 2656132 2800487 3146939 5600974 6293878 11201948 12587756 64411201 72379597 128822402 144759194 257644804 289518388 305253083 610506166 1221012332 7020820909 14041641818 28083283636