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122412102193 = 278943891037
BaseRepresentation
bin111001000000001010…
…1000111001000110001
3102200222002222002122201
41302000111013020301
54001144444232233
6132122500103201
711562325462213
oct1620025071061
9380862862581
10122412102193
1147a07493207
121b883694b01
13b70ab4c684
145cd38365b3
1532b6b1c77d
hex1c80547231

122412102193 has 4 divisors (see below), whose sum is σ = 122455996020. Its totient is φ = 122368208368.

The previous prime is 122412102143. The next prime is 122412102227. The reversal of 122412102193 is 391201214221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64240450849 + 58171651344 = 253457^2 + 241188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122412102193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122412102143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21942730 + ... + 21948307.

It is an arithmetic number, because the mean of its divisors is an integer number (30613999005).

Almost surely, 2122412102193 is an apocalyptic number.

It is an amenable number.

122412102193 is a deficient number, since it is larger than the sum of its proper divisors (43893827).

122412102193 is an equidigital number, since it uses as much as digits as its factorization.

122412102193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43893826.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 122412102193 in words is "one hundred twenty-two billion, four hundred twelve million, one hundred two thousand, one hundred ninety-three".

Divisors: 1 2789 43891037 122412102193