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104430231 = 3261223853
BaseRepresentation
bin1100011100101…
…11101010010111
321021111121100100
412032113222113
5203213231411
614210145143
72405433213
oct616275227
9237447310
10104430231
1153a47a84
122ab821b3
1318835149
14dc25943
15927c456
hex6397a97

104430231 has 24 divisors (see below), whose sum is σ = 154184576. Its totient is φ = 68091840.

The previous prime is 104430173. The next prime is 104430257. The reversal of 104430231 is 132034401.

104430231 is a `hidden beast` number, since 1 + 0 + 4 + 430 + 231 = 666.

It is not a de Polignac number, because 104430231 - 215 = 104397463 is a prime.

It is a super-2 number, since 2×1044302312 = 21811346293426722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104430331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122001 + ... + 122853.

Almost surely, 2104430231 is an apocalyptic number.

104430231 is a deficient number, since it is larger than the sum of its proper divisors (49754345).

104430231 is a wasteful number, since it uses less digits than its factorization.

104430231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 104430231 is about 10219.1110670156. Note that the first 3 decimals coincide. The cubic root of 104430231 is about 470.9145178687.

Adding to 104430231 its reverse (132034401), we get a palindrome (236464632).

The spelling of 104430231 in words is "one hundred four million, four hundred thirty thousand, two hundred thirty-one".

Divisors: 1 3 9 61 183 223 549 669 853 2007 2559 7677 13603 40809 52033 122427 156099 190219 468297 570657 1711971 11603359 34810077 104430231