Search a number
-
+
122100442013 = 1150212210723
BaseRepresentation
bin111000110110111000…
…0001110001110011101
3102200011101112010021002
41301231300032032131
54000030203121023
6132031524120045
711551522430024
oct1615560161635
9380141463232
10122100442013
1147867575310
121b7b7236025
13b68b3cb474
145ca42a98bb
1532995a8b28
hex1c6dc0e39d

122100442013 has 8 divisors (see below), whose sum is σ = 133227071136. Its totient is φ = 110978244400.

The previous prime is 122100441989. The next prime is 122100442043. The reversal of 122100442013 is 310244001221.

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 122100442013 - 218 = 122100179869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100442043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050131 + ... + 1160592.

It is an arithmetic number, because the mean of its divisors is an integer number (16653383892).

Almost surely, 2122100442013 is an apocalyptic number.

It is an amenable number.

122100442013 is a deficient number, since it is larger than the sum of its proper divisors (11126629123).

122100442013 is a wasteful number, since it uses less digits than its factorization.

122100442013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215755.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 122100442013 its reverse (310244001221), we get a palindrome (432344443234).

The spelling of 122100442013 in words is "one hundred twenty-two billion, one hundred million, four hundred forty-two thousand, thirteen".

Divisors: 1 11 5021 55231 2210723 24317953 11100040183 122100442013