Search a number
-
+
20212330012 = 227721868929
BaseRepresentation
bin10010110100101111…
…111010111000011100
31221011122001202021021
4102310233322320130
5312343324030022
613141352213524
71313610653560
oct226457727034
957148052237
1020212330012
118632373776
123b0109a2a4
131ba168b1b4
14d9a5976a0
157d470d7c7
hex4b4bfae1c

20212330012 has 12 divisors (see below), whose sum is σ = 40424660080. Its totient is φ = 8662427136.

The previous prime is 20212330003. The next prime is 20212330027. The reversal of 20212330012 is 21003321202.

20212330012 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360934437 + ... + 360934492.

Almost surely, 220212330012 is an apocalyptic number.

It is an amenable number.

20212330012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20212330012 is a wasteful number, since it uses less digits than its factorization.

20212330012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721868940 (or 721868938 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20212330012 its reverse (21003321202), we get a palindrome (41215651214).

The spelling of 20212330012 in words is "twenty billion, two hundred twelve million, three hundred thirty thousand, twelve".

Divisors: 1 2 4 7 14 28 721868929 1443737858 2887475716 5053082503 10106165006 20212330012