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4154312993 = 9742827969
BaseRepresentation
bin1111011110011101…
…1100100100100001
3101201112001222002012
43313213130210201
532002001003433
61524121202305
7204643035455
oct36747344441
911645058065
104154312993
111842001926
1297b330395
135128a078c
142b5a42665
15194aa7848
hexf79dc921

4154312993 has 4 divisors (see below), whose sum is σ = 4197141060. Its totient is φ = 4111484928.

The previous prime is 4154312983. The next prime is 4154313011. The reversal of 4154312993 is 3992134514.

4154312993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1432395409 + 2721917584 = 37847^2 + 52172^2 .

It is a cyclic number.

It is not a de Polignac number, because 4154312993 - 24 = 4154312977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4154312993.

It is not an unprimeable number, because it can be changed into a prime (4154312963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21413888 + ... + 21414081.

It is an arithmetic number, because the mean of its divisors is an integer number (1049285265).

Almost surely, 24154312993 is an apocalyptic number.

It is an amenable number.

4154312993 is a deficient number, since it is larger than the sum of its proper divisors (42828067).

4154312993 is an equidigital number, since it uses as much as digits as its factorization.

4154312993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42828066.

The product of its digits is 116640, while the sum is 41.

The square root of 4154312993 is about 64453.9602584667. The cubic root of 4154312993 is about 1607.5570879482.

The spelling of 4154312993 in words is "four billion, one hundred fifty-four million, three hundred twelve thousand, nine hundred ninety-three".

Divisors: 1 97 42827969 4154312993