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729000000001 = 7139001890011
BaseRepresentation
bin10101001101110111100…
…10010011101000000001
32120200200021010001000001
422212323302103220001
543420443000000001
61314521544000001
7103445204521330
oct12467362235001
92520607101001
10729000000001
11261192549949
12b9350760001
135398a5c4b60
14273d8a01d17
1513e6a000001
hexa9bbc93a01

729000000001 has 16 divisors (see below), whose sum is σ = 897331458688. Its totient is φ = 576726480000.

The previous prime is 728999999989. The next prime is 729000000019. The reversal of 729000000001 is 100000000927.

It is a Cunningham number, because it is equal to 90003+1.

It is a cyclic number.

It is not a de Polignac number, because 729000000001 - 211 = 728999997953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (729000000061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374086 + ... + 1264096.

It is an arithmetic number, because the mean of its divisors is an integer number (56083216168).

Almost surely, 2729000000001 is an apocalyptic number.

It is an amenable number.

729000000001 is a deficient number, since it is larger than the sum of its proper divisors (168331458687).

729000000001 is a wasteful number, since it uses less digits than its factorization.

729000000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899032.

The product of its (nonzero) digits is 126, while the sum is 19.

Adding to 729000000001 its reverse (100000000927), we get a palindrome (829000000928).

The spelling of 729000000001 in words is "seven hundred twenty-nine billion, one", and thus it is an aban number.

Divisors: 1 7 13 91 9001 63007 117013 819091 890011 6230077 11570143 80991001 8010989011 56076923077 104142857143 729000000001