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12113868 = 22313196167
BaseRepresentation
bin101110001101…
…011111001100
3211210110002210
4232031133030
511100120433
61111350420
7204652254
oct56153714
924713083
1012113868
116924368
124082410
132681a90
141874964
1510e4463
hexb8d7cc

12113868 has 96 divisors (see below), whose sum is σ = 33053440. Its totient is φ = 3421440.

The previous prime is 12113867. The next prime is 12113869. The reversal of 12113868 is 86831121.

It is an interprime number because it is at equal distance from previous prime (12113867) and next prime (12113869).

It is not an unprimeable number, because it can be changed into a prime (12113861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180771 + ... + 180837.

Almost surely, 212113868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12113868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16526720).

12113868 is an abundant number, since it is smaller than the sum of its proper divisors (20939572).

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

12113868 is a wasteful number, since it uses less digits than its factorization.

12113868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 165 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 12113868 is about 3480.4982401949. The cubic root of 12113868 is about 229.6647162647.

Adding to 12113868 its reverse (86831121), we get a palindrome (98944989).

The spelling of 12113868 in words is "twelve million, one hundred thirteen thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 19 26 38 39 52 57 61 67 76 78 114 122 134 156 183 201 228 244 247 268 366 402 494 732 741 793 804 871 988 1159 1273 1482 1586 1742 2318 2379 2546 2613 2964 3172 3477 3484 3819 4087 4636 4758 5092 5226 6954 7638 8174 9516 10452 12261 13908 15067 15276 16348 16549 24522 30134 33098 45201 49044 49647 53131 60268 66196 77653 90402 99294 106262 155306 159393 180804 198588 212524 232959 310612 318786 465918 637572 931836 1009489 2018978 3028467 4037956 6056934 12113868