Search a number
-
+
20201210212 = 2218787268819
BaseRepresentation
bin10010110100000101…
…100000000101100100
31221010212010210202211
4102310011200011210
5312333002211322
613140314013204
71313414311411
oct226405400544
957125123684
1020201210212
118627069257
123ab9417204
131b9c296a31
14d98d01108
157d3763b77
hex4b4160164

20201210212 has 12 divisors (see below), whose sum is σ = 35354131120. Its totient is φ = 10100029896.

The previous prime is 20201210207. The next prime is 20201210213. The reversal of 20201210212 is 21201210202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20201210192 and 20201210201.

It is not an unprimeable number, because it can be changed into a prime (20201210213) 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, 59262 + ... + 209557.

Almost surely, 220201210212 is an apocalyptic number.

It is an amenable number.

20201210212 is a deficient number, since it is larger than the sum of its proper divisors (15152920908).

20201210212 is a wasteful number, since it uses less digits than its factorization.

20201210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287610 (or 287608 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20201210212 its reverse (21201210202), we get a palindrome (41402420414).

The spelling of 20201210212 in words is "twenty billion, two hundred one million, two hundred ten thousand, two hundred twelve".

Divisors: 1 2 4 18787 37574 75148 268819 537638 1075276 5050302553 10100605106 20201210212