Search a number
-
+
122020423097 = 170213716869
BaseRepresentation
bin111000110100011111…
…0111110010110111001
3102122221210221201221112
41301220332332112321
53444344212014342
6132015545050105
711546531324516
oct1615076762671
9378853851845
10122020423097
1147826390981
121b794486935
13b6779625b1
145c977da30d
15329254e682
hex1c68fbe5b9

122020423097 has 4 divisors (see below), whose sum is σ = 122021310180. Its totient is φ = 122019536016.

The previous prime is 122020423081. The next prime is 122020423103. The reversal of 122020423097 is 790324020221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22480804096 + 99539619001 = 149936^2 + 315499^2 .

It is a cyclic number.

It is not a de Polignac number, because 122020423097 - 24 = 122020423081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122020423597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188222 + ... + 528647.

It is an arithmetic number, because the mean of its divisors is an integer number (30505327545).

Almost surely, 2122020423097 is an apocalyptic number.

It is an amenable number.

122020423097 is a deficient number, since it is larger than the sum of its proper divisors (887083).

122020423097 is an equidigital number, since it uses as much as digits as its factorization.

122020423097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887082.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 122020423097 in words is "one hundred twenty-two billion, twenty million, four hundred twenty-three thousand, ninety-seven".

Divisors: 1 170213 716869 122020423097