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10100231 = 13177101
BaseRepresentation
bin100110100001…
…111000000111
3201000010220122
4212201320013
510041201411
61000252155
7151564511
oct46417007
921003818
1010100231
1157794a9
12347105b
13212838b
1414acbb1
15d479db
hex9a1e07

10100231 has 4 divisors (see below), whose sum is σ = 10177464. Its totient is φ = 10023000.

The previous prime is 10100221. The next prime is 10100249. The reversal of 10100231 is 13200101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10100231 is a prime.

It is a super-2 number, since 2×101002312 = 204029332506722, 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 (10100201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38420 + ... + 38681.

It is an arithmetic number, because the mean of its divisors is an integer number (2544366).

Almost surely, 210100231 is an apocalyptic number.

10100231 is a deficient number, since it is larger than the sum of its proper divisors (77233).

10100231 is an equidigital number, since it uses as much as digits as its factorization.

10100231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77232.

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

The square root of 10100231 is about 3178.0860592501. The cubic root of 10100231 is about 216.1608812286.

Adding to 10100231 its reverse (13200101), we get a palindrome (23300332).

The spelling of 10100231 in words is "ten million, one hundred thousand, two hundred thirty-one".

Divisors: 1 131 77101 10100231