Search a number
-
+
20113222108 = 2271136356897
BaseRepresentation
bin10010101110110101…
…110110100111011100
31220220201120112210011
4102232311312213130
5312142441101413
613123452053004
71311265365340
oct225665664734
956821515704
1020113222108
118591431511
123a93a64164
131b86c9a775
14d8b359620
157cab8333d
hex4aed769dc

20113222108 has 24 divisors (see below), whose sum is σ = 40582436832. Its totient is φ = 8543668224.

The previous prime is 20113222097. The next prime is 20113222117. The reversal of 20113222108 is 80122231102.

It is a congruent number.

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, 3175285 + ... + 3181612.

It is an arithmetic number, because the mean of its divisors is an integer number (1690934868).

Almost surely, 220113222108 is an apocalyptic number.

20113222108 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20113222108 is an abundant number, since it is smaller than the sum of its proper divisors (20469214724).

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

20113222108 is a wasteful number, since it uses less digits than its factorization.

20113222108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357021 (or 6357019 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The spelling of 20113222108 in words is "twenty billion, one hundred thirteen million, two hundred twenty-two thousand, one hundred eight".

Divisors: 1 2 4 7 14 28 113 226 452 791 1582 3164 6356897 12713794 25427588 44498279 88996558 177993116 718329361 1436658722 2873317444 5028305527 10056611054 20113222108