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21342000001 = 78689350887
BaseRepresentation
bin10011111000000101…
…010001001110000001
32001002100201221011111
4103320011101032001
5322202023000001
613445425043321
71353606002230
oct237005211601
961070657144
1021342000001
119062003533
124177486541
13202172988a
14106661ab17
1584d9a5851
hex4f8151381

21342000001 has 8 divisors (see below), whose sum is σ = 24393733760. Its totient is φ = 18290985408.

The previous prime is 21341999981. The next prime is 21342000077. The reversal of 21342000001 is 10000024312.

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 21342000001 - 27 = 21341999873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21342000301) 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, 114621 + ... + 236266.

It is an arithmetic number, because the mean of its divisors is an integer number (3049216720).

Almost surely, 221342000001 is an apocalyptic number.

It is an amenable number.

21342000001 is a deficient number, since it is larger than the sum of its proper divisors (3051733759).

21342000001 is an equidigital number, since it uses as much as digits as its factorization.

21342000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359583.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21342000001 its reverse (10000024312), we get a palindrome (31342024313).

The spelling of 21342000001 in words is "twenty-one billion, three hundred forty-two million, one", and thus it is an aban number.

Divisors: 1 7 8689 60823 350887 2456209 3048857143 21342000001