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4145379839 = 13730258247
BaseRepresentation
bin1111011100010101…
…0111100111111111
3101200220021010002122
43313011113213333
531442204123324
61523201513155
7204504101336
oct36705274777
911626233078
104145379839
111837a60257
129783427bb
13510a936a3
142b4798d1d
15193de0a5e
hexf71579ff

4145379839 has 4 divisors (see below), whose sum is σ = 4175638224. Its totient is φ = 4115121456.

The previous prime is 4145379829. The next prime is 4145379863. The reversal of 4145379839 is 9389735414.

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

It is a cyclic number.

It is not a de Polignac number, because 4145379839 - 212 = 4145375743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145379829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15128987 + ... + 15129260.

It is an arithmetic number, because the mean of its divisors is an integer number (1043909556).

Almost surely, 24145379839 is an apocalyptic number.

4145379839 is a deficient number, since it is larger than the sum of its proper divisors (30258385).

4145379839 is a wasteful number, since it uses less digits than its factorization.

4145379839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30258384.

The product of its digits is 3265920, while the sum is 53.

The square root of 4145379839 is about 64384.6242436810. The cubic root of 4145379839 is about 1606.4040003265.

The spelling of 4145379839 in words is "four billion, one hundred forty-five million, three hundred seventy-nine thousand, eight hundred thirty-nine".

Divisors: 1 137 30258247 4145379839