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28318034043 = 3213743325753
BaseRepresentation
bin11010010111111000…
…101110100001111011
32201002112101011211200
4122113320232201323
5430443404042133
621001545425243
72021514214005
oct322770564173
981075334750
1028318034043
1111011879122
1255a379b223
132893a91180
141528cd9375
15b0b138913
hex697e2e87b

28318034043 has 24 divisors (see below), whose sum is σ = 44109697632. Its totient is φ = 17402974848.

The previous prime is 28318034029. The next prime is 28318034077. The reversal of 28318034043 is 34043081382.

It is a happy number.

It is not a de Polignac number, because 28318034043 - 25 = 28318034011 is a prime.

It is a super-2 number, since 2×283180340432 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28318033989 and 28318034007.

It is not an unprimeable number, because it can be changed into a prime (28318034083) 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, 75946 + ... + 249807.

It is an arithmetic number, because the mean of its divisors is an integer number (1837904068).

Almost surely, 228318034043 is an apocalyptic number.

28318034043 is a deficient number, since it is larger than the sum of its proper divisors (15791663589).

28318034043 is a wasteful number, since it uses less digits than its factorization.

28318034043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326515 (or 326512 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 28318034043 in words is "twenty-eight billion, three hundred eighteen million, thirty-four thousand, forty-three".

Divisors: 1 3 9 13 39 117 743 2229 6687 9659 28977 86931 325753 977259 2931777 4234789 12704367 38113101 242034479 726103437 2178310311 3146448227 9439344681 28318034043