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28260970995 = 357126536123
BaseRepresentation
bin11010010100011111…
…000011000111110011
32200221120000002001110
4122110133003013303
5430334302032440
620552150404403
72020222201305
oct322437030763
980846002043
1028260970995
1110a92643884
125588660703
132885001c5a
1415214c3975
15b06116080
hex6947c31f3

28260970995 has 16 divisors (see below), whose sum is σ = 45854422272. Its totient is φ = 14860228320.

The previous prime is 28260970981. The next prime is 28260971017. The reversal of 28260970995 is 59907906282.

It is not a de Polignac number, because 28260970995 - 211 = 28260968947 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13266997 + ... + 13269126.

It is an arithmetic number, because the mean of its divisors is an integer number (2865901392).

Almost surely, 228260970995 is an apocalyptic number.

28260970995 is a deficient number, since it is larger than the sum of its proper divisors (17593451277).

28260970995 is a wasteful number, since it uses less digits than its factorization.

28260970995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26536202.

The product of its (nonzero) digits is 4898880, while the sum is 57.

The spelling of 28260970995 in words is "twenty-eight billion, two hundred sixty million, nine hundred seventy thousand, nine hundred ninety-five".

Divisors: 1 3 5 15 71 213 355 1065 26536123 79608369 132680615 398041845 1884064733 5652194199 9420323665 28260970995