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13143960 = 23325291259
BaseRepresentation
bin110010001000…
…111110011000
3220201210010100
4302020332120
511331101320
61145415400
7216502404
oct62107630
926653110
1013143960
117468285
12449a560
1329528bb
141a62104
151249790
hexc88f98

13143960 has 96 divisors (see below), whose sum is σ = 44226000. Its totient is φ = 3381504.

The previous prime is 13143959. The next prime is 13143967. The reversal of 13143960 is 6934131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143967) 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 23 ways as a sum of consecutive naturals, for example, 9811 + ... + 11069.

Almost surely, 213143960 is an apocalyptic number.

13143960 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 13143960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22113000).

13143960 is an abundant number, since it is smaller than the sum of its proper divisors (31082040).

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

13143960 is a wasteful number, since it uses less digits than its factorization.

13143960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 13143960 is about 3625.4599708175. The cubic root of 13143960 is about 235.9982284651.

The spelling of 13143960 in words is "thirteen million, one hundred forty-three thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 29 30 36 40 45 58 60 72 87 90 116 120 145 174 180 232 261 290 348 360 435 522 580 696 870 1044 1160 1259 1305 1740 2088 2518 2610 3480 3777 5036 5220 6295 7554 10072 10440 11331 12590 15108 18885 22662 25180 30216 36511 37770 45324 50360 56655 73022 75540 90648 109533 113310 146044 151080 182555 219066 226620 292088 328599 365110 438132 453240 547665 657198 730220 876264 1095330 1314396 1460440 1642995 2190660 2628792 3285990 4381320 6571980 13143960