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117180 = 22335731
BaseRepresentation
bin11100100110111100
312221202000
4130212330
512222210
62302300
7665430
oct344674
9187660
10117180
1180048
1257990
134144b
14309c0
1524ac0
hex1c9bc

117180 has 96 divisors (see below), whose sum is σ = 430080. Its totient is φ = 25920.

The previous prime is 117167. The next prime is 117191. The reversal of 117180 is 81711.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 7.

It is a congruent number.

It is an unprimeable number.

117180 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3765 + ... + 3795.

It is an arithmetic number, because the mean of its divisors is an integer number (4480).

2117180 is an apocalyptic number.

117180 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 117180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215040).

117180 is an abundant number, since it is smaller than the sum of its proper divisors (312900).

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

117180 is a wasteful number, since it uses less digits than its factorization.

117180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

The square root of 117180 is about 342.3156438143. The cubic root of 117180 is about 48.9348015276.

Adding to 117180 its reverse (81711), we get a palindrome (198891).

The spelling of 117180 in words is "one hundred seventeen thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 31 35 36 42 45 54 60 62 63 70 84 90 93 105 108 124 126 135 140 155 180 186 189 210 217 252 270 279 310 315 372 378 420 434 465 540 558 620 630 651 756 837 868 930 945 1085 1116 1260 1302 1395 1674 1860 1890 1953 2170 2604 2790 3255 3348 3780 3906 4185 4340 5580 5859 6510 7812 8370 9765 11718 13020 16740 19530 23436 29295 39060 58590 117180