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10303032031 = 13997364569
BaseRepresentation
bin10011001100001101…
…11100101011011111
3222121000222020220221
421212012330223133
5132100034011111
64422205422211
7513214220155
oct114606745337
928530866827
1010303032031
11440787a506
121bb656a967
13c8270a376
146da4c53d5
154047ba371
hex2661bcadf

10303032031 has 4 divisors (see below), whose sum is σ = 10310398000. Its totient is φ = 10295666064.

The previous prime is 10303032029. The next prime is 10303032073. The reversal of 10303032031 is 13023030301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13023030301 = 122811060421.

It is a cyclic number.

It is not a de Polignac number, because 10303032031 - 21 = 10303032029 is a prime.

It is a super-2 number, since 2×103030320312 (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 = 10303031996 and 10303032014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10303032331) 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, 3680886 + ... + 3683683.

It is an arithmetic number, because the mean of its divisors is an integer number (2577599500).

Almost surely, 210303032031 is an apocalyptic number.

10303032031 is a deficient number, since it is larger than the sum of its proper divisors (7365969).

10303032031 is an equidigital number, since it uses as much as digits as its factorization.

10303032031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7365968.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 10303032031 its reverse (13023030301), we get a palindrome (23326062332).

The spelling of 10303032031 in words is "ten billion, three hundred three million, thirty-two thousand, thirty-one".

Divisors: 1 1399 7364569 10303032031