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102051403243 = 421242402383
BaseRepresentation
bin101111100001010111…
…1001101010111101011
3100202102010201102110121
41133002233031113223
53133000124400433
6114514243424111
710241633420656
oct1370257152753
9322363642417
10102051403243
113a3093a1789
1217940985037
139814813b0a
144d2169a89d
1529c43a2c2d
hex17c2bcd5eb

102051403243 has 4 divisors (see below), whose sum is σ = 102293806048. Its totient is φ = 101809000440.

The previous prime is 102051403211. The next prime is 102051403273. The reversal of 102051403243 is 342304150201.

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 102051403243 - 25 = 102051403211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102051403273) 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, 121200771 + ... + 121201612.

It is an arithmetic number, because the mean of its divisors is an integer number (25573451512).

Almost surely, 2102051403243 is an apocalyptic number.

102051403243 is a deficient number, since it is larger than the sum of its proper divisors (242402805).

102051403243 is an equidigital number, since it uses as much as digits as its factorization.

102051403243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242402804.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 102051403243 its reverse (342304150201), we get a palindrome (444355553444).

The spelling of 102051403243 in words is "one hundred two billion, fifty-one million, four hundred three thousand, two hundred forty-three".

Divisors: 1 421 242402383 102051403243