Search a number
-
+
20635894095 = 352947438837
BaseRepresentation
bin10011001101111111…
…101100000101001111
31222021011002000221220
4103031333230011033
5314230242102340
613251402454423
71330243130355
oct231577540517
958234060856
1020635894095
11882a473733
123bbab04413
131c3b36022b
14dda9337d5
1580b9c8ed0
hex4cdfec14f

20635894095 has 16 divisors (see below), whose sum is σ = 34155963360. Its totient is φ = 10626299264.

The previous prime is 20635894063. The next prime is 20635894099. The reversal of 20635894095 is 59049853602.

It is a cyclic number.

It is not a de Polignac number, because 20635894095 - 25 = 20635894063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20635894099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23718984 + ... + 23719853.

It is an arithmetic number, because the mean of its divisors is an integer number (2134747710).

Almost surely, 220635894095 is an apocalyptic number.

20635894095 is a deficient number, since it is larger than the sum of its proper divisors (13520069265).

20635894095 is a wasteful number, since it uses less digits than its factorization.

20635894095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47438874.

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 20635894095 in words is "twenty billion, six hundred thirty-five million, eight hundred ninety-four thousand, ninety-five".

Divisors: 1 3 5 15 29 87 145 435 47438837 142316511 237194185 711582555 1375726273 4127178819 6878631365 20635894095