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103012102013 = 412512490293
BaseRepresentation
bin101111111101111111…
…1111110111101111101
3100211220002102222102112
41133323333332331331
53141432044231023
6115153442503405
710304510264012
oct1377377767575
9324802388375
10103012102013
113a761711a07
1217b6a664b65
139938870522
144db30d7709
152a2d8be478
hex17fbffef7d

103012102013 has 4 divisors (see below), whose sum is σ = 105524592348. Its totient is φ = 100499611680.

The previous prime is 103012102003. The next prime is 103012102043. The reversal of 103012102013 is 310201210301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46157514649 + 56854587364 = 214843^2 + 238442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103012102013 is a prime.

It is a super-2 number, since 2×1030121020132 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103012102003) 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, 1256245106 + ... + 1256245187.

It is an arithmetic number, because the mean of its divisors is an integer number (26381148087).

Almost surely, 2103012102013 is an apocalyptic number.

It is an amenable number.

103012102013 is a deficient number, since it is larger than the sum of its proper divisors (2512490335).

103012102013 is an equidigital number, since it uses as much as digits as its factorization.

103012102013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512490334.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 103012102013 its reverse (310201210301), we get a palindrome (413213312314).

The spelling of 103012102013 in words is "one hundred three billion, twelve million, one hundred two thousand, thirteen".

Divisors: 1 41 2512490293 103012102013