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10027145 = 52005429
BaseRepresentation
bin100110010000…
…000010001001
3200212102122202
4212100002021
510031332040
6554525545
7151141442
oct46200211
920772582
1010027145
1157295a7
1234368b5
13210102b
1414902c9
15d31015
hex990089

10027145 has 4 divisors (see below), whose sum is σ = 12032580. Its totient is φ = 8021712.

The previous prime is 10027141. The next prime is 10027151. The reversal of 10027145 is 54172001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54172001 = 134167077.

It can be written as a sum of positive squares in 2 ways, for example, as 1669264 + 8357881 = 1292^2 + 2891^2 .

It is a cyclic number.

It is not a de Polignac number, because 10027145 - 22 = 10027141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10027141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002710 + ... + 1002719.

It is an arithmetic number, because the mean of its divisors is an integer number (3008145).

Almost surely, 210027145 is an apocalyptic number.

It is an amenable number.

10027145 is a deficient number, since it is larger than the sum of its proper divisors (2005435).

10027145 is an equidigital number, since it uses as much as digits as its factorization.

10027145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005434.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 10027145 is about 3166.5667528097. The cubic root of 10027145 is about 215.6382333123.

Adding to 10027145 its reverse (54172001), we get a palindrome (64199146).

The spelling of 10027145 in words is "ten million, twenty-seven thousand, one hundred forty-five".

Divisors: 1 5 2005429 10027145