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102073 = 103991
BaseRepresentation
bin11000111010111001
312012000111
4120322321
511231243
62104321
7603406
oct307271
9165014
10102073
116a764
124b0a1
13375ca
14292ad
152039d
hex18eb9

102073 has 4 divisors (see below), whose sum is σ = 103168. Its totient is φ = 100980.

The previous prime is 102071. The next prime is 102077. The reversal of 102073 is 370201.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 370201 = 1328477.

It is a cyclic number.

It is not a de Polignac number, because 102073 - 21 = 102071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102071) 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, 393 + ... + 598.

It is an arithmetic number, because the mean of its divisors is an integer number (25792).

2102073 is an apocalyptic number.

It is an amenable number.

102073 is a deficient number, since it is larger than the sum of its proper divisors (1095).

102073 is an equidigital number, since it uses as much as digits as its factorization.

102073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 102073 is about 319.4886539456. The cubic root of 102073 is about 46.7344310306.

Adding to 102073 its reverse (370201), we get a palindrome (472274).

The spelling of 102073 in words is "one hundred two thousand, seventy-three", and thus it is an iban number.

Divisors: 1 103 991 102073