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180960 = 25351329
BaseRepresentation
bin101100001011100000
3100012020020
4230023200
521242320
63513440
71352403
oct541340
9305206
10180960
11113a5a
1288880
13644a0
1449d3a
1538940
hex2c2e0

180960 has 96 divisors (see below), whose sum is σ = 635040. Its totient is φ = 43008.

The previous prime is 180959. The next prime is 181001. The reversal of 180960 is 69081.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 180960.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 180960.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6226 + ... + 6254.

It is an arithmetic number, because the mean of its divisors is an integer number (6615).

2180960 is an apocalyptic number.

180960 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 180960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317520).

180960 is an abundant number, since it is smaller than the sum of its proper divisors (454080).

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

180960 is a wasteful number, since it uses less digits than its factorization.

180960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 180960 is about 425.3939350767. The cubic root of 180960 is about 56.5623609878.

The spelling of 180960 in words is "one hundred eighty thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 29 30 32 39 40 48 52 58 60 65 78 80 87 96 104 116 120 130 145 156 160 174 195 208 232 240 260 290 312 348 377 390 416 435 464 480 520 580 624 696 754 780 870 928 1040 1131 1160 1248 1392 1508 1560 1740 1885 2080 2262 2320 2784 3016 3120 3480 3770 4524 4640 5655 6032 6240 6960 7540 9048 11310 12064 13920 15080 18096 22620 30160 36192 45240 60320 90480 180960