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102102122203 = 131779405513
BaseRepresentation
bin101111100010111000…
…0101011111011011011
3100202112200011012210121
41133011300223323123
53133101120402303
6114523254454111
710243120501444
oct1370560537333
9322480135717
10102102122203
113a334a93684
1217955964337
139822191533
144d283002cb
1529c8a709bd
hex17c5c2bedb

102102122203 has 4 divisors (see below), whose sum is σ = 102881527848. Its totient is φ = 101322716560.

The previous prime is 102102122197. The next prime is 102102122207. The reversal of 102102122203 is 302221201201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102102122203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102102122207) 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, 389702626 + ... + 389702887.

It is an arithmetic number, because the mean of its divisors is an integer number (25720381962).

Almost surely, 2102102122203 is an apocalyptic number.

102102122203 is a deficient number, since it is larger than the sum of its proper divisors (779405645).

102102122203 is an equidigital number, since it uses as much as digits as its factorization.

102102122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779405644.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102102122203 its reverse (302221201201), we get a palindrome (404323323404).

The spelling of 102102122203 in words is "one hundred two billion, one hundred two million, one hundred twenty-two thousand, two hundred three".

Divisors: 1 131 779405513 102102122203