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155340 = 22325863
BaseRepresentation
bin100101111011001100
321220002100
4211323030
514432330
63155100
71214613
oct457314
9256070
10155340
11a6789
1275a90
1355923
144087a
1531060
hex25ecc

155340 has 36 divisors (see below), whose sum is σ = 471744. Its totient is φ = 41376.

The previous prime is 155333. The next prime is 155371. The reversal of 155340 is 43551.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

155340 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 11 ways as a sum of consecutive naturals, for example, 252 + ... + 611.

It is an arithmetic number, because the mean of its divisors is an integer number (13104).

2155340 is an apocalyptic number.

155340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155340 is an abundant number, since it is smaller than the sum of its proper divisors (316404).

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

155340 is a wasteful number, since it uses less digits than its factorization.

155340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 155340 is about 394.1319575980. The cubic root of 155340 is about 53.7561017050.

Adding to 155340 its reverse (43551), we get a palindrome (198891).

The spelling of 155340 in words is "one hundred fifty-five thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 863 1726 2589 3452 4315 5178 7767 8630 10356 12945 15534 17260 25890 31068 38835 51780 77670 155340