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28896091960993 = 232021962137189
BaseRepresentation
bin1101001000111111001010…
…10010111111011010100001
310210022102212022222001001221
412210133211102333122201
512241413144020222433
6141242403102455041
76041450045026015
oct644374522773241
9123272768861057
1028896091960993
119230844657564
1232a830a894481
131317b74accc7a
1471c814c6a545
153519c11ba72d
hex1a47e54bf6a1

28896091960993 has 8 divisors (see below), whose sum is σ = 30153935563200. Its totient is φ = 27638372673648.

The previous prime is 28896091960987. The next prime is 28896091961029. The reversal of 28896091960993 is 39906919069882.

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 28896091960993 - 237 = 28758653007521 is a prime.

It is a super-3 number, since 3×288960919609933 (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28896091960973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30603558 + ... + 31533631.

It is an arithmetic number, because the mean of its divisors is an integer number (3769241945400).

Almost surely, 228896091960993 is an apocalyptic number.

28896091960993 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28896091960993 is a deficient number, since it is larger than the sum of its proper divisors (1257843602207).

28896091960993 is a wasteful number, since it uses less digits than its factorization.

28896091960993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62157431.

The product of its (nonzero) digits is 816293376, while the sum is 79.

The spelling of 28896091960993 in words is "twenty-eight trillion, eight hundred ninety-six billion, ninety-one million, nine hundred sixty thousand, nine hundred ninety-three".

Divisors: 1 23 20219 465037 62137189 1429155347 1256351824391 28896091960993