Search a number
-
+
20069070081 = 310961373303
BaseRepresentation
bin10010101100001101…
…011011010100000001
31220210122111101120220
4102230031123110001
5312100140220311
613115233453253
71310221165254
oct225415332401
956718441526
1020069070081
118569515435
123a81111229
131b7aaac0c8
14d8554509b
157c6d61206
hex4ac35b501

20069070081 has 8 divisors (see below), whose sum is σ = 27004253760. Its totient is φ = 13256633232.

The previous prime is 20069070029. The next prime is 20069070097. The reversal of 20069070081 is 18007096002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20069070081 - 27 = 20069069953 is a prime.

It is a super-2 number, since 2×200690700812 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20069070881) 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, 30686325 + ... + 30686978.

It is an arithmetic number, because the mean of its divisors is an integer number (3375531720).

Almost surely, 220069070081 is an apocalyptic number.

It is an amenable number.

20069070081 is a deficient number, since it is larger than the sum of its proper divisors (6935183679).

20069070081 is a wasteful number, since it uses less digits than its factorization.

20069070081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61373415.

The product of its (nonzero) digits is 6048, while the sum is 33.

The spelling of 20069070081 in words is "twenty billion, sixty-nine million, seventy thousand, eighty-one".

Divisors: 1 3 109 327 61373303 184119909 6689690027 20069070081