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122023323420 = 223519372411907
BaseRepresentation
bin111000110100100101…
…0000010011100011100
3102122222000102002102220
41301221022002130130
53444400432322140
6132020131145340
711546565064335
oct1615112023434
9378860362386
10122023323420
1147827a91a39
121b795445250
13b67843976b
145c97d5328c
153292923bd0
hex1c6928271c

122023323420 has 288 divisors, whose sum is σ = 378844542720. Its totient is φ = 29246883840.

The previous prime is 122023323397. The next prime is 122023323467. The reversal of 122023323420 is 24323320221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 63986107 + ... + 63988013.

It is an arithmetic number, because the mean of its divisors is an integer number (1315432440).

Almost surely, 2122023323420 is an apocalyptic number.

122023323420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122023323420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189422271360).

122023323420 is an abundant number, since it is smaller than the sum of its proper divisors (256821219300).

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

122023323420 is a wasteful number, since it uses less digits than its factorization.

122023323420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 122023323420 its reverse (24323320221), we get a palindrome (146346643641).

The spelling of 122023323420 in words is "one hundred twenty-two billion, twenty-three million, three hundred twenty-three thousand, four hundred twenty".