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28913577713 = 171748397283
BaseRepresentation
bin11010111011011000…
…100010111011110001
32202122000222221011122
4122323120202323301
5433203333441323
621141022152025
72042335232636
oct327330427361
982560887148
1028913577713
1111297a62979
12572b122615
13295a289587
14158404218d
15b43575ec8
hex6bb622ef1

28913577713 has 8 divisors (see below), whose sum is σ = 30616442208. Its totient is φ = 27210942784.

The previous prime is 28913577691. The next prime is 28913577757. The reversal of 28913577713 is 31777531982.

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 28913577713 - 224 = 28896800497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28913577773) 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, 248570 + ... + 345852.

It is an arithmetic number, because the mean of its divisors is an integer number (3827055276).

Almost surely, 228913577713 is an apocalyptic number.

It is an amenable number.

28913577713 is a deficient number, since it is larger than the sum of its proper divisors (1702864495).

28913577713 is a wasteful number, since it uses less digits than its factorization.

28913577713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114783.

The product of its digits is 2222640, while the sum is 53.

The spelling of 28913577713 in words is "twenty-eight billion, nine hundred thirteen million, five hundred seventy-seven thousand, seven hundred thirteen".

Divisors: 1 17 17483 97283 297211 1653811 1700798689 28913577713