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10103442431 = 17594320143
BaseRepresentation
bin10010110100011011…
…00100101111111111
3222002010102001110112
421122031210233333
5131142440124211
64350315500235
7505241562245
oct113215445777
928063361415
1010103442431
114315147925
121b5b75767b
13c50267b04
146bbbac795
153e1ee288b
hex25a364bff

10103442431 has 4 divisors (see below), whose sum is σ = 10697762592. Its totient is φ = 9509122272.

The previous prime is 10103442409. The next prime is 10103442457. The reversal of 10103442431 is 13424430101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13424430101 = 46728746103.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10103442431 is a prime.

It is a super-2 number, since 2×101034424312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10103442397 and 10103442406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10103442931) 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, 297160055 + ... + 297160088.

It is an arithmetic number, because the mean of its divisors is an integer number (2674440648).

Almost surely, 210103442431 is an apocalyptic number.

10103442431 is a deficient number, since it is larger than the sum of its proper divisors (594320161).

10103442431 is an equidigital number, since it uses as much as digits as its factorization.

10103442431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594320160.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 10103442431 its reverse (13424430101), we get a palindrome (23527872532).

The spelling of 10103442431 in words is "ten billion, one hundred three million, four hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 17 594320143 10103442431