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102230420443 = 282893613787
BaseRepresentation
bin101111100110101101…
…0000110101111011011
3100202212121120102220021
41133031122012233123
53133331441423233
6114544120411311
710246236144004
oct1371532065733
9322777512807
10102230420443
113a3a0452a88
1217990916b37
139842932558
144d3b37a1ab
1529d4e64e2d
hex17cd686bdb

102230420443 has 4 divisors (see below), whose sum is σ = 102234062520. Its totient is φ = 102226778368.

The previous prime is 102230420423. The next prime is 102230420471. The reversal of 102230420443 is 344024032201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102230420443 - 29 = 102230419931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102230420423) 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, 1778605 + ... + 1835182.

It is an arithmetic number, because the mean of its divisors is an integer number (25558515630).

Almost surely, 2102230420443 is an apocalyptic number.

102230420443 is a deficient number, since it is larger than the sum of its proper divisors (3642077).

102230420443 is an equidigital number, since it uses as much as digits as its factorization.

102230420443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642076.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 102230420443 its reverse (344024032201), we get a palindrome (446254452644).

The spelling of 102230420443 in words is "one hundred two billion, two hundred thirty million, four hundred twenty thousand, four hundred forty-three".

Divisors: 1 28289 3613787 102230420443