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10503031 = 711136403
BaseRepresentation
bin101000000100…
…001101110111
3201202121110011
4220010031313
510142044111
61013041051
7155163040
oct50041567
921677404
1010503031
115a240a0
123626187
132239816
1415758c7
15dc7021
hexa04377

10503031 has 8 divisors (see below), whose sum is σ = 13094784. Its totient is φ = 8184120.

The previous prime is 10503023. The next prime is 10503047. The reversal of 10503031 is 13030501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10503031 - 23 = 10503023 is a prime.

It is a super-2 number, since 2×105030312 = 220627320373922, which 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 (10503001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68125 + ... + 68278.

It is an arithmetic number, because the mean of its divisors is an integer number (1636848).

Almost surely, 210503031 is an apocalyptic number.

10503031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10503031 is a deficient number, since it is larger than the sum of its proper divisors (2591753).

10503031 is a wasteful number, since it uses less digits than its factorization.

10503031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136421.

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 10503031 is about 3240.8380089107. The cubic root of 10503031 is about 218.9970253205.

Adding to 10503031 its reverse (13030501), we get a palindrome (23533532).

The spelling of 10503031 in words is "ten million, five hundred three thousand, thirty-one".

Divisors: 1 7 11 77 136403 954821 1500433 10503031