Search a number
-
+
20010104112 = 243478869727
BaseRepresentation
bin10010101000101100…
…011111010100110000
31220122112112121111010
4102220230133110300
5311440041312422
613105325550520
71305604035645
oct225054372460
956575477433
1020010104112
118539200429
123a65415440
131b6b8049bb
14d7b795dcc
157c1ab4b0c
hex4a8b1f530

20010104112 has 40 divisors (see below), whose sum is σ = 52792621056. Its totient is φ = 6528118336.

The previous prime is 20010104077. The next prime is 20010104123. The reversal of 20010104112 is 21140101002.

It is a happy number.

It is a super-3 number, since 3×200101041123 (a number of 32 digits) contains 333 as substring.

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, 4432608 + ... + 4437119.

Almost surely, 220010104112 is an apocalyptic number.

It is an amenable number.

20010104112 is an abundant number, since it is smaller than the sum of its proper divisors (32782516944).

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

20010104112 is a wasteful number, since it uses less digits than its factorization.

20010104112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8869785 (or 8869779 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20010104112 its reverse (21140101002), we get a palindrome (41150205114).

The spelling of 20010104112 in words is "twenty billion, ten million, one hundred four thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 47 48 94 141 188 282 376 564 752 1128 2256 8869727 17739454 26609181 35478908 53218362 70957816 106436724 141915632 212873448 416877169 425746896 833754338 1250631507 1667508676 2501263014 3335017352 5002526028 6670034704 10005052056 20010104112