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103047013 = 1719319031
BaseRepresentation
bin1100010010001…
…01111101100101
321011220022221001
412021011331211
5202340001023
614120353301
72360612416
oct611057545
9234808831
10103047013
1153192823
122a615831
131846c684
14d98580d
1590a76ad
hex6245f65

103047013 has 8 divisors (see below), whose sum is σ = 114851520. Its totient is φ = 91880640.

The previous prime is 103046989. The next prime is 103047029. The reversal of 103047013 is 310740301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103047013 - 29 = 103046501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103047083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159193 + ... + 159838.

It is an arithmetic number, because the mean of its divisors is an integer number (14356440).

Almost surely, 2103047013 is an apocalyptic number.

It is an amenable number.

103047013 is a deficient number, since it is larger than the sum of its proper divisors (11804507).

103047013 is a wasteful number, since it uses less digits than its factorization.

103047013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319067.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 103047013 is about 10151.2074651245. The cubic root of 103047013 is about 468.8261229143.

Adding to 103047013 its reverse (310740301), we get a palindrome (413787314).

The spelling of 103047013 in words is "one hundred three million, forty-seven thousand, thirteen".

Divisors: 1 17 19 323 319031 5423527 6061589 103047013