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12116860 = 2257235371
BaseRepresentation
bin101110001110…
…001101111100
3211210121012121
4232032031330
511100214420
61111412324
7204664060
oct56161574
924717177
1012116860
116926638
1240840a4
132683252
141875aa0
1510e52aa
hexb8e37c

12116860 has 96 divisors (see below), whose sum is σ = 31352832. Its totient is φ = 3843840.

The previous prime is 12116843. The next prime is 12116861. The reversal of 12116860 is 6861121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12116861) 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, 170625 + ... + 170695.

It is an arithmetic number, because the mean of its divisors is an integer number (326592).

Almost surely, 212116860 is an apocalyptic number.

12116860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12116860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15676416).

12116860 is an abundant number, since it is smaller than the sum of its proper divisors (19235972).

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

12116860 is a wasteful number, since it uses less digits than its factorization.

12116860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 12116860 is about 3480.9280371763. The cubic root of 12116860 is about 229.6836229774.

Adding to 12116860 its reverse (6861121), we get a palindrome (18977981).

The spelling of 12116860 in words is "twelve million, one hundred sixteen thousand, eight hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 53 70 71 92 106 115 140 142 161 212 230 265 284 322 355 371 460 497 530 644 710 742 805 994 1060 1219 1420 1484 1610 1633 1855 1988 2438 2485 3220 3266 3710 3763 4876 4970 6095 6532 7420 7526 8165 8533 9940 11431 12190 15052 16330 17066 18815 22862 24380 26341 32660 34132 37630 42665 45724 52682 57155 75260 85330 86549 105364 114310 131705 170660 173098 228620 263410 346196 432745 526820 605843 865490 1211686 1730980 2423372 3029215 6058430 12116860