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45068819 = 1797151181
BaseRepresentation
bin1010101111101…
…1001000010011
310010210201210112
42223323020103
543014200234
64245551535
71055035655
oct253731023
9103721715
1045068819
1123492964
12131155ab
13944ca53
145db26d5
153e53ace
hex2afb213

45068819 has 16 divisors (see below), whose sum is σ = 48799296. Its totient is φ = 41472000.

The previous prime is 45068797. The next prime is 45068827. The reversal of 45068819 is 91886054.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-45068819 is a prime.

It is a super-2 number, since 2×450688192 = 4062396892109522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45068879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248909 + ... + 249089.

It is an arithmetic number, because the mean of its divisors is an integer number (3049956).

Almost surely, 245068819 is an apocalyptic number.

45068819 is a deficient number, since it is larger than the sum of its proper divisors (3730477).

45068819 is a wasteful number, since it uses less digits than its factorization.

45068819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 45068819 is about 6713.3314382652. The cubic root of 45068819 is about 355.8705579777.

The spelling of 45068819 in words is "forty-five million, sixty-eight thousand, eight hundred nineteen".

Divisors: 1 17 97 151 181 1649 2567 3077 14647 17557 27331 248999 298469 464627 2651107 45068819