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28684008409011 = 386342709259411
BaseRepresentation
bin1101000010110100001000…
…01000011100011110110011
310202120011102212100022110020
412201122010020130132303
512224424322123042021
6141001130200134523
76020231316416334
oct641320410343663
9122504385308406
1028684008409011
119159901a5796a
1232731a0467443
131300b76244247
1471245601c28b
1534b20bebe7c6
hex1a168421c7b3

28684008409011 has 16 divisors (see below), whose sum is σ = 38290705413120. Its totient is φ = 19099993050720.

The previous prime is 28684008408949. The next prime is 28684008409061. The reversal of 28684008409011 is 11090480048682.

It is not a de Polignac number, because 28684008409011 - 210 = 28684008407987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28684008409061) 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, 110443896 + ... + 110703306.

It is an arithmetic number, because the mean of its divisors is an integer number (2393169088320).

Almost surely, 228684008409011 is an apocalyptic number.

28684008409011 is a deficient number, since it is larger than the sum of its proper divisors (9606697004109).

28684008409011 is a wasteful number, since it uses less digits than its factorization.

28684008409011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302986.

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 28684008409011 in words is "twenty-eight trillion, six hundred eighty-four billion, eight million, four hundred nine thousand, eleven".

Divisors: 1 3 863 2589 42709 128127 259411 778233 36857867 110573601 223871693 671615079 11079184399 33237553197 9561336136337 28684008409011