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10289531 = 71469933
BaseRepresentation
bin100111010000…
…000101111011
3201100202120202
4213100011323
510113231111
61004312415
7153313430
oct47200573
921322522
1010289531
11589874a
12354270b
1321935a5
14151bb87
15d83b3b
hex9d017b

10289531 has 4 divisors (see below), whose sum is σ = 11759472. Its totient is φ = 8819592.

The previous prime is 10289527. The next prime is 10289537. The reversal of 10289531 is 13598201.

10289531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13598201 = 19370457.

It is a cyclic number.

It is not a de Polignac number, because 10289531 - 22 = 10289527 is a prime.

It is a super-2 number, since 2×102895312 = 211748896399922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10289494 and 10289503.

It is not an unprimeable number, because it can be changed into a prime (10289537) 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, 734960 + ... + 734973.

It is an arithmetic number, because the mean of its divisors is an integer number (2939868).

Almost surely, 210289531 is an apocalyptic number.

10289531 is a deficient number, since it is larger than the sum of its proper divisors (1469941).

10289531 is an equidigital number, since it uses as much as digits as its factorization.

10289531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469940.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 10289531 is about 3207.7298826429. The cubic root of 10289531 is about 217.5029708495.

The spelling of 10289531 in words is "ten million, two hundred eighty-nine thousand, five hundred thirty-one".

Divisors: 1 7 1469933 10289531