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12993120 = 2532571289
BaseRepresentation
bin110001100100…
…001001100000
3220110010012200
4301210021200
511311234440
61142253200
7215303550
oct61441140
926403180
1012993120
117374a18
124427200
1328cc04a
141a23160
151219c30
hexc64260

12993120 has 144 divisors (see below), whose sum is σ = 50712480. Its totient is φ = 2967552.

The previous prime is 12993119. The next prime is 12993121. The reversal of 12993120 is 2139921.

It is an interprime number because it is at equal distance from previous prime (12993119) and next prime (12993121).

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12993121) 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, 9436 + ... + 10724.

It is an arithmetic number, because the mean of its divisors is an integer number (352170).

Almost surely, 212993120 is an apocalyptic number.

12993120 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 12993120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25356240).

12993120 is an abundant number, since it is smaller than the sum of its proper divisors (37719360).

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

12993120 is a wasteful number, since it uses less digits than its factorization.

12993120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 12993120 is about 3604.5970648604. The cubic root of 12993120 is about 235.0919814969.

The spelling of 12993120 in words is "twelve million, nine hundred ninety-three thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 70 72 80 84 90 96 105 112 120 126 140 144 160 168 180 210 224 240 252 280 288 315 336 360 420 480 504 560 630 672 720 840 1008 1120 1260 1289 1440 1680 2016 2520 2578 3360 3867 5040 5156 6445 7734 9023 10080 10312 11601 12890 15468 18046 19335 20624 23202 25780 27069 30936 36092 38670 41248 45115 46404 51560 54138 58005 61872 72184 77340 81207 90230 92808 103120 108276 116010 123744 135345 144368 154680 162414 180460 185616 206240 216552 232020 270690 288736 309360 324828 360920 371232 406035 433104 464040 541380 618720 649656 721840 812070 866208 928080 1082760 1299312 1443680 1624140 1856160 2165520 2598624 3248280 4331040 6496560 12993120