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10201031 = 17956989
BaseRepresentation
bin100110111010…
…011111000111
3201012021011222
4212322133013
510102413111
61002350555
7152464421
oct46723707
921167158
1010201031
115838205
1234bb45b
132162219
1414d7811
15d677db
hex9ba7c7

10201031 has 4 divisors (see below), whose sum is σ = 10258200. Its totient is φ = 10143864.

The previous prime is 10201013. The next prime is 10201049. The reversal of 10201031 is 13010201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13010201 = 28794519.

It is an interprime number because it is at equal distance from previous prime (10201013) and next prime (10201049).

It is a cyclic number.

It is not a de Polignac number, because 10201031 - 210 = 10200007 is a prime.

It is a super-2 number, since 2×102010312 = 208122066925922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201001) 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, 28316 + ... + 28673.

It is an arithmetic number, because the mean of its divisors is an integer number (2564550).

Almost surely, 210201031 is an apocalyptic number.

10201031 is a deficient number, since it is larger than the sum of its proper divisors (57169).

10201031 is an equidigital number, since it uses as much as digits as its factorization.

10201031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57168.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 10201031 is about 3193.9052897667. The cubic root of 10201031 is about 216.8775952484.

Adding to 10201031 its reverse (13010201), we get a palindrome (23211232).

The spelling of 10201031 in words is "ten million, two hundred one thousand, thirty-one".

Divisors: 1 179 56989 10201031