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361140 = 223513463
BaseRepresentation
bin1011000001010110100
3200100101120
41120022310
543024030
611423540
73032613
oct1301264
9610346
10361140
1122736a
12154bb0
13c84c0
149587a
1572010
hex582b4

361140 has 48 divisors (see below), whose sum is σ = 1091328. Its totient is φ = 88704.

The previous prime is 361111. The next prime is 361159. The reversal of 361140 is 41163.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

361140 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 15 ways as a sum of consecutive naturals, for example, 549 + ... + 1011.

It is an arithmetic number, because the mean of its divisors is an integer number (22736).

2361140 is an apocalyptic number.

361140 is a gapful number since it is divisible by the number (30) 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 361140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545664).

361140 is an abundant number, since it is smaller than the sum of its proper divisors (730188).

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

361140 is a wasteful number, since it uses less digits than its factorization.

361140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 361140 is about 600.9492491051. The cubic root of 361140 is about 71.2128769371.

It can be divided in two parts, 36 and 1140, that added together give a triangular number (1176 = T48).

The spelling of 361140 in words is "three hundred sixty-one thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 463 780 926 1389 1852 2315 2778 4630 5556 6019 6945 9260 12038 13890 18057 24076 27780 30095 36114 60190 72228 90285 120380 180570 361140