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4107438721 = 61617109133
BaseRepresentation
bin1111010011010010…
…1000101010000001
3101121020212111200001
43310310220222001
531403001014341
61515324400001
7203533440001
oct36464505201
911536774601
104107438721
1118185a6561
129676a6001
13505c6b019
142ad720001
151908e8d31
hexf4d28a81

4107438721 has 8 divisors (see below), whose sum is σ = 4181578344. Its totient is φ = 4033518720.

The previous prime is 4107438719. The next prime is 4107438737. The reversal of 4107438721 is 1278347014.

It can be written as a sum of positive squares in 4 ways, for example, as 165482496 + 3941956225 = 12864^2 + 62785^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4107438721 - 21 = 4107438719 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4107438701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16930 + ... + 92203.

It is an arithmetic number, because the mean of its divisors is an integer number (522697293).

Almost surely, 24107438721 is an apocalyptic number.

It is an amenable number.

4107438721 is a deficient number, since it is larger than the sum of its proper divisors (74139623).

4107438721 is a wasteful number, since it uses less digits than its factorization.

4107438721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109811.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 4107438721 is about 64089.3027033373. The cubic root of 4107438721 is about 1601.4880324675.

The spelling of 4107438721 in words is "four billion, one hundred seven million, four hundred thirty-eight thousand, seven hundred twenty-one".

Divisors: 1 61 617 37637 109133 6657113 67335061 4107438721