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122442120143 = 723853891571
BaseRepresentation
bin111001000001000011…
…1100111101111001111
3102201001012110011112122
41302002013213233033
54001230140321033
6132125451323155
711563141564130
oct1620207475717
9381035404478
10122442120143
1147a22426132
121b8917504bb
13b71412c885
145cd780bc87
1532b959ba98
hex1c821e7bcf

122442120143 has 16 divisors (see below), whose sum is σ = 146189277696. Its totient is φ = 100269528480.

The previous prime is 122442120103. The next prime is 122442120197. The reversal of 122442120143 is 341021244221.

It is a cyclic number.

It is not a de Polignac number, because 122442120143 - 220 = 122441071567 is a prime.

It is a super-2 number, since 2×1224421201432 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122442120103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308453 + ... + 583118.

It is an arithmetic number, because the mean of its divisors is an integer number (9136829856).

Almost surely, 2122442120143 is an apocalyptic number.

122442120143 is a deficient number, since it is larger than the sum of its proper divisors (23747157553).

122442120143 is an equidigital number, since it uses as much as digits as its factorization.

122442120143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892454.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 122442120143 its reverse (341021244221), we get a palindrome (463463364364).

The spelling of 122442120143 in words is "one hundred twenty-two billion, four hundred forty-two million, one hundred twenty thousand, one hundred forty-three".

Divisors: 1 7 23 161 853 5971 19619 137333 891571 6240997 20506133 143542931 760510063 5323570441 17491731449 122442120143