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10530947 = 71504421
BaseRepresentation
bin101000001011…
…000010000011
3201211000202002
4220023002003
510143442242
61013414215
7155340320
oct50130203
921730662
1010530947
115a43069
12363a36b
13224943b
141581b47
15dd0432
hexa0b083

10530947 has 4 divisors (see below), whose sum is σ = 12035376. Its totient is φ = 9026520.

The previous prime is 10530929. The next prime is 10530991. The reversal of 10530947 is 74903501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74903501 = 88185021.

It is a cyclic number.

It is not a de Polignac number, because 10530947 - 28 = 10530691 is a prime.

It is a super-2 number, since 2×105309472 = 221801689433618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10530347) 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, 752204 + ... + 752217.

It is an arithmetic number, because the mean of its divisors is an integer number (3008844).

Almost surely, 210530947 is an apocalyptic number.

10530947 is a deficient number, since it is larger than the sum of its proper divisors (1504429).

10530947 is an equidigital number, since it uses as much as digits as its factorization.

10530947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504428.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 10530947 is about 3245.1420616053. The cubic root of 10530947 is about 219.1908776973.

The spelling of 10530947 in words is "ten million, five hundred thirty thousand, nine hundred forty-seven".

Divisors: 1 7 1504421 10530947