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103119013 = 157656809
BaseRepresentation
bin1100010010101…
…11100010100101
321012000222200201
412021113202211
5202344302023
614122110501
72361332344
oct611274245
9235028621
10103119013
1153231928
122a64b431
131849638a
14d9a3b5b
1590bdbad
hex62578a5

103119013 has 4 divisors (see below), whose sum is σ = 103775980. Its totient is φ = 102462048.

The previous prime is 103119011. The next prime is 103119019. The reversal of 103119013 is 310911301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310911301 = 3083100847.

It can be written as a sum of positive squares in 2 ways, for example, as 18515809 + 84603204 = 4303^2 + 9198^2 .

It is a cyclic number.

It is not a de Polignac number, because 103119013 - 21 = 103119011 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 (103119011) 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, 328248 + ... + 328561.

It is an arithmetic number, because the mean of its divisors is an integer number (25943995).

Almost surely, 2103119013 is an apocalyptic number.

It is an amenable number.

103119013 is a deficient number, since it is larger than the sum of its proper divisors (656967).

103119013 is an equidigital number, since it uses as much as digits as its factorization.

103119013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656966.

The product of its (nonzero) digits is 81, while the sum is 19.

The square root of 103119013 is about 10154.7532220138. The cubic root of 103119013 is about 468.9352886927.

The spelling of 103119013 in words is "one hundred three million, one hundred nineteen thousand, thirteen".

Divisors: 1 157 656809 103119013