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122934218101 = 294239110969
BaseRepresentation
bin111001001111101110…
…0110100110101110101
3102202022111102100000221
41302133130310311311
54003232124434401
6132250350534341
711611265420062
oct1623734646565
9382274370027
10122934218101
1148155185662
121b9aa5073b1
13b792078cb6
145d42d07c69
1532e78a37a1
hex1c9f734d75

122934218101 has 4 divisors (see below), whose sum is σ = 127173329100. Its totient is φ = 118695107104.

The previous prime is 122934218089. The next prime is 122934218137. The reversal of 122934218101 is 101812439221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101812439221 = 175988967013.

It can be written as a sum of positive squares in 2 ways, for example, as 30852922500 + 92081295601 = 175650^2 + 303449^2 .

It is a cyclic number.

It is not a de Polignac number, because 122934218101 - 29 = 122934217589 is a prime.

It is a super-2 number, since 2×1229342181012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122934218191) 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, 2119555456 + ... + 2119555513.

It is an arithmetic number, because the mean of its divisors is an integer number (31793332275).

Almost surely, 2122934218101 is an apocalyptic number.

It is an amenable number.

122934218101 is a deficient number, since it is larger than the sum of its proper divisors (4239110999).

122934218101 is an equidigital number, since it uses as much as digits as its factorization.

122934218101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239110998.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 122934218101 in words is "one hundred twenty-two billion, nine hundred thirty-four million, two hundred eighteen thousand, one hundred one".

Divisors: 1 29 4239110969 122934218101