Search a number
-
+
20210001111012 = 2237123720658581
BaseRepresentation
bin1001001100001100000011…
…11011111110011111100100
32122120001112201121021022010
410212012001323332133210
510122110040241023022
6110552202450434220
74154060445015636
oct446060173763744
978501481537263
1020210001111012
116492016831a39
122324a00592970
13b37a445bbc7b
144dc2526b0a56
15250a9633750c
hex126181efe7e4

20210001111012 has 24 divisors (see below), whose sum is σ = 47820847701312. Its totient is φ = 6641784402400.

The previous prime is 20210001111007. The next prime is 20210001111023. The reversal of 20210001111012 is 21011110001202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11860328439 + ... + 11860330142.

It is an arithmetic number, because the mean of its divisors is an integer number (1992535320888).

Almost surely, 220210001111012 is an apocalyptic number.

It is an amenable number.

20210001111012 is an abundant number, since it is smaller than the sum of its proper divisors (27610846590300).

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

20210001111012 is a wasteful number, since it uses less digits than its factorization.

20210001111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23720658659 (or 23720658657 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20210001111012 its reverse (21011110001202), we get a palindrome (41221111112214).

The spelling of 20210001111012 in words is "twenty trillion, two hundred ten billion, one million, one hundred eleven thousand, twelve".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 23720658581 47441317162 71161975743 94882634324 142323951486 284647902972 1684166759251 3368333518502 5052500277753 6736667037004 10105000555506 20210001111012