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103399459 = 139743881
BaseRepresentation
bin1100010100111…
…00000000100011
321012120020101121
412022130000203
5202432240314
614132113111
72363611102
oct612340043
9235506347
10103399459
11534035a9
122a765797
1318563c17
14da38039
159126d24
hex629c023

103399459 has 4 divisors (see below), whose sum is σ = 104143480. Its totient is φ = 102655440.

The previous prime is 103399451. The next prime is 103399469. The reversal of 103399459 is 954993301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954993301 = 1261975679.

It is a cyclic number.

It is not a de Polignac number, because 103399459 - 23 = 103399451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103399451) 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, 371802 + ... + 372079.

It is an arithmetic number, because the mean of its divisors is an integer number (26035870).

Almost surely, 2103399459 is an apocalyptic number.

103399459 is a deficient number, since it is larger than the sum of its proper divisors (744021).

103399459 is an equidigital number, since it uses as much as digits as its factorization.

103399459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744020.

The product of its (nonzero) digits is 131220, while the sum is 43.

The square root of 103399459 is about 10168.5524535206. The cubic root of 103399459 is about 469.3600147166.

The spelling of 103399459 in words is "one hundred three million, three hundred ninety-nine thousand, four hundred fifty-nine".

Divisors: 1 139 743881 103399459