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2103231 = 313199271
BaseRepresentation
bin1000000001011110111111
310221212002110
420001132333
51014300411
6113025103
723606604
oct10013677
93855073
102103231
111207209
12855193
13588420
143ca6ab
152b82a6
hex2017bf

2103231 has 16 divisors (see below), whose sum is σ = 3046400. Its totient is φ = 1283040.

The previous prime is 2103229. The next prime is 2103239. The reversal of 2103231 is 1323012.

It is a happy number.

It is not a de Polignac number, because 2103231 - 21 = 2103229 is a prime.

It is a super-2 number, since 2×21032312 = 8847161278722, 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 (2103239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7626 + ... + 7896.

It is an arithmetic number, because the mean of its divisors is an integer number (190400).

22103231 is an apocalyptic number.

2103231 is a deficient number, since it is larger than the sum of its proper divisors (943169).

2103231 is a wasteful number, since it uses less digits than its factorization.

2103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2103231 is about 1450.2520470594. The cubic root of 2103231 is about 128.1235582626.

Adding to 2103231 its reverse (1323012), we get a palindrome (3426243).

The spelling of 2103231 in words is "two million, one hundred three thousand, two hundred thirty-one".

Divisors: 1 3 13 39 199 271 597 813 2587 3523 7761 10569 53929 161787 701077 2103231