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102432013 = 145970207
BaseRepresentation
bin1100001101011…
…11110100001101
321010202002022021
412012233310031
5202210311023
614055250141
72352441415
oct606576415
9233662267
10102432013
1152902762
122a379951
13182b5778
14d865645
158ed535d
hex61afd0d

102432013 has 4 divisors (see below), whose sum is σ = 102503680. Its totient is φ = 102360348.

The previous prime is 102432007. The next prime is 102432017. The reversal of 102432013 is 310234201.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310234201 = 1171264931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102432013 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 (102432017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33645 + ... + 36562.

It is an arithmetic number, because the mean of its divisors is an integer number (25625920).

Almost surely, 2102432013 is an apocalyptic number.

It is an amenable number.

102432013 is a deficient number, since it is larger than the sum of its proper divisors (71667).

102432013 is an equidigital number, since it uses as much as digits as its factorization.

102432013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71666.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 102432013 is about 10120.8701700990. The cubic root of 102432013 is about 467.8915864614.

Adding to 102432013 its reverse (310234201), we get a palindrome (412666214).

The spelling of 102432013 in words is "one hundred two million, four hundred thirty-two thousand, thirteen".

Divisors: 1 1459 70207 102432013