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123423110412 = 223721095719157
BaseRepresentation
bin111001011110010010…
…1110011010100001100
3102210120120100122012120
41302330211303110030
54010232304013122
6132411053332540
711626353062100
oct1627445632414
9383516318176
10123423110412
1148386145698
121bb06197150
13b83c4422a4
145d8bc0b900
15332577575c
hex1cbc97350c

123423110412 has 72 divisors (see below), whose sum is σ = 335053648944. Its totient is φ = 35258686848.

The previous prime is 123423110389. The next prime is 123423110423. The reversal of 123423110412 is 214011324321.

123423110412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6433138 + ... + 6452294.

It is an arithmetic number, because the mean of its divisors is an integer number (4653522902).

Almost surely, 2123423110412 is an apocalyptic number.

123423110412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123423110412 is an abundant number, since it is smaller than the sum of its proper divisors (211630538532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123423110412 is a wasteful number, since it uses less digits than its factorization.

123423110412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30135 (or 30126 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 123423110412 its reverse (214011324321), we get a palindrome (337434434733).

The spelling of 123423110412 in words is "one hundred twenty-three billion, four hundred twenty-three million, one hundred ten thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 10957 19157 21914 32871 38314 43828 57471 65742 76628 76699 114942 131484 134099 153398 229884 230097 268198 306796 402297 460194 536396 536893 804594 920388 938693 1073786 1609188 1610679 1877386 2147572 2816079 3221358 3754772 5632158 6442716 11264316 209903249 419806498 629709747 839612996 1259419494 1469322743 2518838988 2938645486 4407968229 5877290972 8815936458 10285259201 17631872916 20570518402 30855777603 41141036804 61711555206 123423110412