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28836016893 = 3271105142937
BaseRepresentation
bin11010110110110000…
…101011001011111101
32202102122001102201200
4122312300223023331
5433024010020033
621125211530113
72040404046045
oct326660531375
982378042650
1028836016893
11112581a8322
125709159939
1329471a14b8
141577a12725
15b3b855013
hex6b6c2b2fd

28836016893 has 24 divisors (see below), whose sum is σ = 42279846336. Its totient is φ = 18934776000.

The previous prime is 28836016873. The next prime is 28836016897. The reversal of 28836016893 is 39861063882.

It is a happy number.

28836016893 is a `hidden beast` number, since 28 + 8 + 3 + 601 + 6 + 8 + 9 + 3 = 666.

It is not a de Polignac number, because 28836016893 - 212 = 28836012797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28836016897) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 650121 + ... + 693057.

It is an arithmetic number, because the mean of its divisors is an integer number (1761660264).

Almost surely, 228836016893 is an apocalyptic number.

It is an amenable number.

28836016893 is a deficient number, since it is larger than the sum of its proper divisors (13443829443).

28836016893 is a wasteful number, since it uses less digits than its factorization.

28836016893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44065 (or 44062 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 28836016893 in words is "twenty-eight billion, eight hundred thirty-six million, sixteen thousand, eight hundred ninety-three".

Divisors: 1 3 9 71 213 639 1051 3153 9459 42937 74621 128811 223863 386433 671589 3048527 9145581 27436743 45126787 135380361 406141083 3204001877 9612005631 28836016893