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102443413 = 971105503
BaseRepresentation
bin1100001101100…
…10100110010101
321010202122221111
412012302212111
5202211142123
614055415021
72352516562
oct606624625
9233678844
10102443413
1152910286
122a384471
13182baa07
14d869869
158ed890d
hex61b2995

102443413 has 4 divisors (see below), whose sum is σ = 102549888. Its totient is φ = 102336940.

The previous prime is 102443401. The next prime is 102443431. The reversal of 102443413 is 314344201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102443413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102443443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51781 + ... + 53722.

It is an arithmetic number, because the mean of its divisors is an integer number (25637472).

Almost surely, 2102443413 is an apocalyptic number.

It is an amenable number.

102443413 is a deficient number, since it is larger than the sum of its proper divisors (106475).

102443413 is an equidigital number, since it uses as much as digits as its factorization.

102443413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106474.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 102443413 is about 10121.4333471105. The cubic root of 102443413 is about 467.9089435554.

Adding to 102443413 its reverse (314344201), we get a palindrome (416787614).

The spelling of 102443413 in words is "one hundred two million, four hundred forty-three thousand, four hundred thirteen".

Divisors: 1 971 105503 102443413