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122331344140 = 22517438367397
BaseRepresentation
bin111000111101110000…
…1000010110100001100
3102200202111000011102201
41301323201002310030
54001013311003030
6132110453131244
711560325161045
oct1617341026414
9380674004381
10122331344140
1147975944515
121b860629b24
13b6c71b5245
145cc6c138cc
1532ae9b92ca
hex1c7b842d0c

122331344140 has 48 divisors (see below), whose sum is σ = 278333127072. Its totient is φ = 44983120896.

The previous prime is 122331344137. The next prime is 122331344189. The reversal of 122331344140 is 41443133221.

It is a happy number.

It is a super-2 number, since 2×1223313441402 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122331344099 and 122331344108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4169079 + ... + 4198318.

It is an arithmetic number, because the mean of its divisors is an integer number (5798606814).

Almost surely, 2122331344140 is an apocalyptic number.

122331344140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122331344140 is an abundant number, since it is smaller than the sum of its proper divisors (156001782932).

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

122331344140 is a wasteful number, since it uses less digits than its factorization.

122331344140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8367466 (or 8367464 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 122331344140 its reverse (41443133221), we get a palindrome (163774477361).

The spelling of 122331344140 in words is "one hundred twenty-two billion, three hundred thirty-one million, three hundred forty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 43 68 85 86 170 172 215 340 430 731 860 1462 2924 3655 7310 14620 8367397 16734794 33469588 41836985 83673970 142245749 167347940 284491498 359798071 568982996 711228745 719596142 1422457490 1439192284 1798990355 2844914980 3597980710 6116567207 7195961420 12233134414 24466268828 30582836035 61165672070 122331344140