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10403103431 = 71486157633
BaseRepresentation
bin10011011000001001…
…01100001011000111
3222212000021102002002
421230010230023013
5132301143302211
64440142335515
7515540630420
oct115404541307
928760242062
1010403103431
11445930a646
122023b8a59b
13c9a377506
147098d4647
1540d48603b
hex26c12c2c7

10403103431 has 4 divisors (see below), whose sum is σ = 11889261072. Its totient is φ = 8916945792.

The previous prime is 10403103407. The next prime is 10403103439. The reversal of 10403103431 is 13430130401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13430130401 = 34938481749.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10403103431 is a prime.

It is a super-2 number, since 2×104031034312 (a number of 21 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 (10403103439) 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, 743078810 + ... + 743078823.

It is an arithmetic number, because the mean of its divisors is an integer number (2972315268).

Almost surely, 210403103431 is an apocalyptic number.

10403103431 is a deficient number, since it is larger than the sum of its proper divisors (1486157641).

10403103431 is an equidigital number, since it uses as much as digits as its factorization.

10403103431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486157640.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 10403103431 its reverse (13430130401), we get a palindrome (23833233832).

The spelling of 10403103431 in words is "ten billion, four hundred three million, one hundred three thousand, four hundred thirty-one".

Divisors: 1 7 1486157633 10403103431