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103231412 = 22171518109
BaseRepresentation
bin1100010011100…
…10111110110100
321012020200212122
412021302332310
5202411401122
614124335112
72362311134
oct611627664
9235220778
10103231412
11532a9319
122a6a4498
131850559b
14d9d2ac4
1590e2142
hex6272fb4

103231412 has 12 divisors (see below), whose sum is σ = 191281860. Its totient is φ = 48579456.

The previous prime is 103231339. The next prime is 103231423. The reversal of 103231412 is 214132301.

It can be written as a sum of positive squares in 2 ways, for example, as 68492176 + 34739236 = 8276^2 + 5894^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758987 + ... + 759122.

It is an arithmetic number, because the mean of its divisors is an integer number (15940155).

Almost surely, 2103231412 is an apocalyptic number.

It is an amenable number.

103231412 is a deficient number, since it is larger than the sum of its proper divisors (88050448).

103231412 is a wasteful number, since it uses less digits than its factorization.

103231412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518130 (or 1518128 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 103231412 is about 10160.2860195961. The cubic root of 103231412 is about 469.1056055501.

Adding to 103231412 its reverse (214132301), we get a palindrome (317363713).

The spelling of 103231412 in words is "one hundred three million, two hundred thirty-one thousand, four hundred twelve".

Divisors: 1 2 4 17 34 68 1518109 3036218 6072436 25807853 51615706 103231412