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28016041511 = 409523130973
BaseRepresentation
bin11010000101111000…
…101101111000100111
32200022111010100222002
4122011320231320213
5424334101312021
620512000555515
72011156265213
oct320570557047
980274110862
1028016041511
1110977363717
12551a622b9b
132846346473
1414dab67943
15ade88450b
hex685e2de27

28016041511 has 8 divisors (see below), whose sum is σ = 28138454160. Its totient is φ = 27893892672.

The previous prime is 28016041451. The next prime is 28016041553. The reversal of 28016041511 is 11514061082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28016041511 - 226 = 27948932647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28016041561) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 148421 + ... + 279393.

It is an arithmetic number, because the mean of its divisors is an integer number (3517306770).

Almost surely, 228016041511 is an apocalyptic number.

28016041511 is a deficient number, since it is larger than the sum of its proper divisors (122412649).

28016041511 is a wasteful number, since it uses less digits than its factorization.

28016041511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131905.

The product of its (nonzero) digits is 1920, while the sum is 29.

The spelling of 28016041511 in words is "twenty-eight billion, sixteen million, forty-one thousand, five hundred eleven".

Divisors: 1 409 523 130973 213907 53567957 68498879 28016041511