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69138432001 = 531304498717
BaseRepresentation
bin100000001100011111…
…0001100000000000001
320121110101011020202201
41000120332030000001
52113043414311001
651432312313201
74665212655412
oct1003076140001
9217411136681
1069138432001
112735992a301
12114963a2801
13669aab8bc2
1434bc421809
151be9b76501
hex1018f8c001

69138432001 has 4 divisors (see below), whose sum is σ = 70442930772. Its totient is φ = 67833933232.

The previous prime is 69138431993. The next prime is 69138432019. The reversal of 69138432001 is 10023483196.

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 56227791376 + 12910640625 = 237124^2 + 113625^2 .

It is a cyclic number.

It is not a de Polignac number, because 69138432001 - 23 = 69138431993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69138432091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652249306 + ... + 652249411.

It is an arithmetic number, because the mean of its divisors is an integer number (17610732693).

Almost surely, 269138432001 is an apocalyptic number.

It is an amenable number.

69138432001 is a deficient number, since it is larger than the sum of its proper divisors (1304498771).

69138432001 is a wasteful number, since it uses less digits than its factorization.

69138432001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304498770.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 69138432001 in words is "sixty-nine billion, one hundred thirty-eight million, four hundred thirty-two thousand, one".

Divisors: 1 53 1304498717 69138432001