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28096742135 = 5711622111731
BaseRepresentation
bin11010001010101100…
…100100001011110111
32200112002222101102002
4122022230210023313
5430020231222020
620524002405515
72013156240050
oct321254441367
980462871362
1028096742135
1110a08973250
12554166089b
132859c90707
141507773727
15ae69c5975
hex68ab242f7

28096742135 has 32 divisors (see below), whose sum is σ = 42045986304. Its totient is φ = 17510544000.

The previous prime is 28096742117. The next prime is 28096742153. The reversal of 28096742135 is 53124769082.

It is an interprime number because it is at equal distance from previous prime (28096742117) and next prime (28096742153).

It is not a de Polignac number, because 28096742135 - 220 = 28095693559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28096742135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2389220 + ... + 2400950.

It is an arithmetic number, because the mean of its divisors is an integer number (1313937072).

It is a 2-persistent number, because it is pandigital, and so is 2⋅28096742135 = 56193484270, but 3⋅28096742135 = 84290226405 is not.

Almost surely, 228096742135 is an apocalyptic number.

28096742135 is the 136862-nd pentagonal number.

28096742135 is a deficient number, since it is larger than the sum of its proper divisors (13949244169).

28096742135 is a wasteful number, since it uses less digits than its factorization.

28096742135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17975.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 28096742135 in words is "twenty-eight billion, ninety-six million, seven hundred forty-two thousand, one hundred thirty-five".

Divisors: 1 5 7 11 35 55 77 385 6221 11731 31105 43547 58655 68431 82117 129041 217735 342155 410585 479017 645205 903287 2395085 4516435 72978551 364892755 510849857 802764061 2554249285 4013820305 5619348427 28096742135