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20286026115 = 3519113629903
BaseRepresentation
bin10010111001001001…
…000011000110000011
31221100202201220022120
4102321021003012003
5313021210313430
613152543535323
71315464243165
oct227111030603
957322656276
1020286026115
11866aa29743
123b218ba543
131bb3a22164
14da629c935
157dae19610
hex4b9243183

20286026115 has 32 divisors (see below), whose sum is σ = 34468346880. Its totient is φ = 10159059456.

The previous prime is 20286026113. The next prime is 20286026129. The reversal of 20286026115 is 51162068202.

It is not a de Polignac number, because 20286026115 - 21 = 20286026113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20286026113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282747 + ... + 347156.

It is an arithmetic number, because the mean of its divisors is an integer number (1077135840).

Almost surely, 220286026115 is an apocalyptic number.

20286026115 is a deficient number, since it is larger than the sum of its proper divisors (14182320765).

20286026115 is a wasteful number, since it uses less digits than its factorization.

20286026115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630043.

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 20286026115 in words is "twenty billion, two hundred eighty-six million, twenty-six thousand, one hundred fifteen".

Divisors: 1 3 5 15 19 57 95 113 285 339 565 1695 2147 6441 10735 32205 629903 1889709 3149515 9448545 11968157 35904471 59840785 71179039 179522355 213537117 355895195 1067685585 1352401741 4057205223 6762008705 20286026115