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10731493 = 53202481
BaseRepresentation
bin101000111011…
…111111100101
3202012012211201
4220323333211
510221401433
61022002501
7160134103
oct50737745
922165751
1010731493
11606a803
123716431
1322b97c6
1415d4c73
15e1ea7d
hexa3bfe5

10731493 has 4 divisors (see below), whose sum is σ = 10934028. Its totient is φ = 10528960.

The previous prime is 10731407. The next prime is 10731499. The reversal of 10731493 is 39413701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39413701 = 172318453.

It can be written as a sum of positive squares in 2 ways, for example, as 4743684 + 5987809 = 2178^2 + 2447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10731493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10731499) 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, 101188 + ... + 101293.

It is an arithmetic number, because the mean of its divisors is an integer number (2733507).

Almost surely, 210731493 is an apocalyptic number.

It is an amenable number.

10731493 is a deficient number, since it is larger than the sum of its proper divisors (202535).

10731493 is an equidigital number, since it uses as much as digits as its factorization.

10731493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202534.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 10731493 is about 3275.8957553622. The cubic root of 10731493 is about 220.5735242254.

The spelling of 10731493 in words is "ten million, seven hundred thirty-one thousand, four hundred ninety-three".

Divisors: 1 53 202481 10731493