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10132861 = 29349409
BaseRepresentation
bin100110101001…
…110101111101
3201001210200011
4212221311331
510043222421
61001103221
7152061604
oct46516575
921053604
1010132861
1157a0a72
123487b11
13213a19b
1414baa3b
15d524e1
hex9a9d7d

10132861 has 4 divisors (see below), whose sum is σ = 10482300. Its totient is φ = 9783424.

The previous prime is 10132849. The next prime is 10132873. The reversal of 10132861 is 16823101.

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

It is an interprime number because it is at equal distance from previous prime (10132849) and next prime (10132873).

It can be written as a sum of positive squares in 2 ways, for example, as 3404025 + 6728836 = 1845^2 + 2594^2 .

It is a cyclic number.

It is not a de Polignac number, because 10132861 - 29 = 10132349 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 (10132841) 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, 174676 + ... + 174733.

It is an arithmetic number, because the mean of its divisors is an integer number (2620575).

Almost surely, 210132861 is an apocalyptic number.

It is an amenable number.

10132861 is a deficient number, since it is larger than the sum of its proper divisors (349439).

10132861 is an equidigital number, since it uses as much as digits as its factorization.

10132861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349438.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 10132861 is about 3183.2155126538. The cubic root of 10132861 is about 216.3934088350.

Adding to 10132861 its reverse (16823101), we get a palindrome (26955962).

The spelling of 10132861 in words is "ten million, one hundred thirty-two thousand, eight hundred sixty-one".

Divisors: 1 29 349409 10132861