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103013412251 = 251410412001
BaseRepresentation
bin101111111110000010…
…0111110110110011011
3100211220011220112201212
41133330010332312123
53141432413143001
6115153530533335
710304524361651
oct1377404766633
9324804815655
10103013412251
113a762427352
1217b6ab9724b
139938c0ba09
144db3358dd1
152a2da7c7bb
hex17fc13ed9b

103013412251 has 4 divisors (see below), whose sum is σ = 103423824504. Its totient is φ = 102603000000.

The previous prime is 103013412247. The next prime is 103013412259. The reversal of 103013412251 is 152214310301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152214310301 = 344753441517.

It is a cyclic number.

It is not a de Polignac number, because 103013412251 - 22 = 103013412247 is a prime.

It is a super-2 number, since 2×1030134122512 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103013412259) 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, 205205750 + ... + 205206251.

It is an arithmetic number, because the mean of its divisors is an integer number (25855956126).

Almost surely, 2103013412251 is an apocalyptic number.

103013412251 is a deficient number, since it is larger than the sum of its proper divisors (410412253).

103013412251 is an equidigital number, since it uses as much as digits as its factorization.

103013412251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410412252.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 103013412251 its reverse (152214310301), we get a palindrome (255227722552).

The spelling of 103013412251 in words is "one hundred three billion, thirteen million, four hundred twelve thousand, two hundred fifty-one".

Divisors: 1 251 410412001 103013412251