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12989160 = 2334519211
BaseRepresentation
bin110001100011…
…001011101000
3220102220210000
4301203023220
511311123120
61142223000
7215256162
oct61431350
926386700
1012989160
117371a48
124424a60
1328ca2c2
141a21932
151218990
hexc632e8

12989160 has 160 divisors (see below), whose sum is σ = 46173600. Its totient is φ = 3265920.

The previous prime is 12989159. The next prime is 12989161. The reversal of 12989160 is 6198921.

It is an interprime number because it is at equal distance from previous prime (12989159) and next prime (12989161).

It is a super-3 number, since 3×129891603 (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12989161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 61455 + ... + 61665.

It is an arithmetic number, because the mean of its divisors is an integer number (288585).

Almost surely, 212989160 is an apocalyptic number.

12989160 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 12989160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23086800).

12989160 is an abundant number, since it is smaller than the sum of its proper divisors (33184440).

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

12989160 is a wasteful number, since it uses less digits than its factorization.

12989160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 12989160 is about 3604.0477244343. The cubic root of 12989160 is about 235.0680955521.

The spelling of 12989160 in words is "twelve million, nine hundred eighty-nine thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 19 20 24 27 30 36 38 40 45 54 57 60 72 76 81 90 95 108 114 120 135 152 162 171 180 190 211 216 228 270 285 324 342 360 380 405 422 456 513 540 570 633 648 684 760 810 844 855 1026 1055 1080 1140 1266 1368 1539 1620 1688 1710 1899 2052 2110 2280 2532 2565 3078 3165 3240 3420 3798 4009 4104 4220 5064 5130 5697 6156 6330 6840 7596 7695 8018 8440 9495 10260 11394 12027 12312 12660 15192 15390 16036 17091 18990 20045 20520 22788 24054 25320 28485 30780 32072 34182 36081 37980 40090 45576 48108 56970 60135 61560 68364 72162 75960 80180 85455 96216 108243 113940 120270 136728 144324 160360 170910 180405 216486 227880 240540 288648 324729 341820 360810 432972 481080 541215 649458 683640 721620 865944 1082430 1298916 1443240 1623645 2164860 2597832 3247290 4329720 6494580 12989160