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10489831 = 11953621
BaseRepresentation
bin101000000000…
…111111100111
3201201221100021
4220000333213
510141133311
61012500011
7155106412
oct50007747
921657307
1010489831
115a15190
12361a607
132233801
141570b79
15dc3171
hexa00fe7

10489831 has 4 divisors (see below), whose sum is σ = 11443464. Its totient is φ = 9536200.

The previous prime is 10489823. The next prime is 10489837. The reversal of 10489831 is 13898401.

It is a happy number.

10489831 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10489831 - 23 = 10489823 is a prime.

It is a super-2 number, since 2×104898312 = 220073108817122, 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 (10489837) 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, 476800 + ... + 476821.

It is an arithmetic number, because the mean of its divisors is an integer number (2860866).

Almost surely, 210489831 is an apocalyptic number.

10489831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10489831 is a deficient number, since it is larger than the sum of its proper divisors (953633).

10489831 is an equidigital number, since it uses as much as digits as its factorization.

10489831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953632.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 10489831 is about 3238.8008583425. The cubic root of 10489831 is about 218.9052431610.

The spelling of 10489831 in words is "ten million, four hundred eighty-nine thousand, eight hundred thirty-one".

Divisors: 1 11 953621 10489831