Search a number
-
+
20068984699 = 79761333821
BaseRepresentation
bin10010101100001101…
…000110011101111011
31220210122100001110121
4102230031012131323
5312100130002244
613115231554111
71310220361321
oct225415063573
956718301417
1020068984699
118569467275
123a8108b937
131b7aa7c29a
14d85521d11
157c6d45c84
hex4ac34677b

20068984699 has 8 divisors (see below), whose sum is σ = 20349789120. Its totient is φ = 19788849600.

The previous prime is 20068984651. The next prime is 20068984723. The reversal of 20068984699 is 99648986002.

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 20068984699 - 211 = 20068982651 is a prime.

It is a super-2 number, since 2×200689846992 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20068984609) 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 7 ways as a sum of consecutive naturals, for example, 106792 + ... + 227029.

It is an arithmetic number, because the mean of its divisors is an integer number (2543723640).

Almost surely, 220068984699 is an apocalyptic number.

20068984699 is a deficient number, since it is larger than the sum of its proper divisors (280804421).

20068984699 is an equidigital number, since it uses as much as digits as its factorization.

20068984699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334661.

The product of its (nonzero) digits is 13436928, while the sum is 61.

The spelling of 20068984699 in words is "twenty billion, sixty-eight million, nine hundred eighty-four thousand, six hundred ninety-nine".

Divisors: 1 79 761 60119 333821 26371859 254037781 20068984699