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2068864401 = 3689621467
BaseRepresentation
bin111101101010000…
…0101110110010001
312100011221012102110
41323110011312101
513214112130101
6541142535533
7102161025432
oct17324056621
95304835373
102068864401
1197190249a
12498a375a9
1326c809026
14158aa3489
15c1966cd6
hex7b505d91

2068864401 has 4 divisors (see below), whose sum is σ = 2758485872. Its totient is φ = 1379242932.

The previous prime is 2068864397. The next prime is 2068864409. The reversal of 2068864401 is 1044688602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2068864401 - 22 = 2068864397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2068864401.

It is not an unprimeable number, because it can be changed into a prime (2068864409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344810731 + ... + 344810736.

It is an arithmetic number, because the mean of its divisors is an integer number (689621468).

Almost surely, 22068864401 is an apocalyptic number.

It is an amenable number.

2068864401 is a deficient number, since it is larger than the sum of its proper divisors (689621471).

2068864401 is an equidigital number, since it uses as much as digits as its factorization.

2068864401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689621470.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 2068864401 is about 45484.7710887941. The cubic root of 2068864401 is about 1274.2188014229.

The spelling of 2068864401 in words is "two billion, sixty-eight million, eight hundred sixty-four thousand, four hundred one".

Divisors: 1 3 689621467 2068864401