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122066050405 = 5131877939237
BaseRepresentation
bin111000110101110110…
…1000001110101100101
3102200001222210211211211
41301223231001311211
53444442402103110
6132024255031421
711550624210655
oct1615355016545
9380058724754
10122066050405
114784a1153a2
121b7a780b571
13b6842495c0
145c9d8b6365
15329656398a
hex1c6bb41d65

122066050405 has 8 divisors (see below), whose sum is σ = 157746895992. Its totient is φ = 90141083328.

The previous prime is 122066050397. The next prime is 122066050433. The reversal of 122066050405 is 504050660221.

It can be written as a sum of positive squares in 4 ways, for example, as 437395396 + 121628655009 = 20914^2 + 348753^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122066050405 - 23 = 122066050397 is a prime.

It is a super-2 number, since 2×1220660504052 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

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, 938969554 + ... + 938969683.

It is an arithmetic number, because the mean of its divisors is an integer number (19718361999).

Almost surely, 2122066050405 is an apocalyptic number.

It is an amenable number.

122066050405 is a deficient number, since it is larger than the sum of its proper divisors (35680845587).

122066050405 is a wasteful number, since it uses less digits than its factorization.

122066050405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877939255.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 122066050405 in words is "one hundred twenty-two billion, sixty-six million, fifty thousand, four hundred five".

Divisors: 1 5 13 65 1877939237 9389696185 24413210081 122066050405