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28325474805 = 3583910912063
BaseRepresentation
bin11010011000010101…
…000111000111110101
32201010001101012122110
4122120111013013311
5431002310143210
621002413121233
72021634364125
oct323025070765
981101335573
1028325474805
1111015aa0511
1255a6189219
132895497ba4
141529cb4c85
15b0bb08420
hex6985471f5

28325474805 has 32 divisors (see below), whose sum is σ = 45438382080. Its totient is φ = 15067776320.

The previous prime is 28325474789. The next prime is 28325474897. The reversal of 28325474805 is 50847452382.

It is not a de Polignac number, because 28325474805 - 24 = 28325474789 is a prime.

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, 13729204 + ... + 13731266.

It is an arithmetic number, because the mean of its divisors is an integer number (1419949440).

Almost surely, 228325474805 is an apocalyptic number.

It is an amenable number.

28325474805 is a deficient number, since it is larger than the sum of its proper divisors (17112907275).

28325474805 is a wasteful number, since it uses less digits than its factorization.

28325474805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001.

The product of its (nonzero) digits is 2150400, while the sum is 48.

The spelling of 28325474805 in words is "twenty-eight billion, three hundred twenty-five million, four hundred seventy-four thousand, eight hundred five".

Divisors: 1 3 5 15 839 1091 2063 2517 3273 4195 5455 6189 10315 12585 16365 30945 915349 1730857 2250733 2746047 4576745 5192571 6752199 8654285 11253665 13730235 25962855 33760995 1888364987 5665094961 9441824935 28325474805