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103123313 = 198751899
BaseRepresentation
bin1100010010110…
…00100101110001
321012001012120222
412021120211301
5202344421223
614122142425
72361351026
oct611304561
9235035528
10103123313
1153235087
122a651a15
1318498317
14d9a554d
1590c00c8
hex6258971

103123313 has 4 divisors (see below), whose sum is σ = 103177200. Its totient is φ = 103069428.

The previous prime is 103123297. The next prime is 103123337. The reversal of 103123313 is 313321301.

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: 313321301 = 2833110597.

It is a cyclic number.

It is not a de Polignac number, because 103123313 - 24 = 103123297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103123291 and 103123300.

It is not an unprimeable number, because it can be changed into a prime (103123373) 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, 23963 + ... + 27936.

It is an arithmetic number, because the mean of its divisors is an integer number (25794300).

Almost surely, 2103123313 is an apocalyptic number.

It is an amenable number.

103123313 is a deficient number, since it is larger than the sum of its proper divisors (53887).

103123313 is an equidigital number, since it uses as much as digits as its factorization.

103123313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53886.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 103123313 is about 10154.9649433171. The cubic root of 103123313 is about 468.9418067073.

Adding to 103123313 its reverse (313321301), we get a palindrome (416444614).

The spelling of 103123313 in words is "one hundred three million, one hundred twenty-three thousand, three hundred thirteen".

Divisors: 1 1987 51899 103123313