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28860006319 = 192389635809
BaseRepresentation
bin11010111000001100…
…001011111110101111
32202111022012020000221
4122320030023332233
5433101130200234
621131430032211
72041115002054
oct327014137657
982438166027
1028860006319
111126a7a29a1
1257151a8667
13294c150721
14157ac9902b
15b3d9e2eb4
hex6b830bfaf

28860006319 has 8 divisors (see below), whose sum is σ = 30391718000. Its totient is φ = 27329571072.

The previous prime is 28860006317. The next prime is 28860006349. The reversal of 28860006319 is 91360006882.

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 28860006319 - 21 = 28860006317 is a prime.

It is a super-2 number, since 2×288600063192 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860006317) 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, 272514 + ... + 363295.

It is an arithmetic number, because the mean of its divisors is an integer number (3798964750).

Almost surely, 228860006319 is an apocalyptic number.

28860006319 is a deficient number, since it is larger than the sum of its proper divisors (1531711681).

28860006319 is a wasteful number, since it uses less digits than its factorization.

28860006319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638217.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 28860006319 in words is "twenty-eight billion, eight hundred sixty million, six thousand, three hundred nineteen".

Divisors: 1 19 2389 45391 635809 12080371 1518947701 28860006319