Search a number
-
+
122123132220 = 223517119728561
BaseRepresentation
bin111000110111100011…
…0110001110100111100
3102200012222012220101010
41301233012301310330
54000102010212340
6132034054315220
711552216332155
oct1615706616474
9380188186333
10122123132220
1147879362851
121b802958b10
13b69301421b
145ca72d492c
15329b58bb80
hex1c6f1b1d3c

122123132220 has 48 divisors (see below), whose sum is σ = 362059171488. Its totient is φ = 30650511360.

The previous prime is 122123132171. The next prime is 122123132273. The reversal of 122123132220 is 22231321221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59863261 + ... + 59865300.

It is an arithmetic number, because the mean of its divisors is an integer number (7542899406).

Almost surely, 2122123132220 is an apocalyptic number.

122123132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122123132220 is an abundant number, since it is smaller than the sum of its proper divisors (239936039268).

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

122123132220 is a wasteful number, since it uses less digits than its factorization.

122123132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119728590 (or 119728588 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122123132220 its reverse (22231321221), we get a palindrome (144354453441).

The spelling of 122123132220 in words is "one hundred twenty-two billion, one hundred twenty-three million, one hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 119728561 239457122 359185683 478914244 598642805 718371366 1197285610 1436742732 1795928415 2035385537 2394571220 3591856830 4070771074 6106156611 7183713660 8141542148 10176927685 12212313222 20353855370 24424626444 30530783055 40707710740 61061566110 122123132220