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155460 = 22352591
BaseRepresentation
bin100101111101000100
321220020210
4211331010
514433320
63155420
71215144
oct457504
9256223
10155460
11a6888
1275b70
13559b6
1440924
15310e0
hex25f44

155460 has 24 divisors (see below), whose sum is σ = 435456. Its totient is φ = 41440.

The previous prime is 155453. The next prime is 155461. The reversal of 155460 is 64551.

It is a happy number.

155460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (155461) by changing a digit.

155460 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 7 ways as a sum of consecutive naturals, for example, 1236 + ... + 1355.

It is an arithmetic number, because the mean of its divisors is an integer number (18144).

2155460 is an apocalyptic number.

155460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155460 is an abundant number, since it is smaller than the sum of its proper divisors (279996).

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

155460 is a wasteful number, since it uses less digits than its factorization.

155460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603 (or 2601 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 155460 is about 394.2841614876. The cubic root of 155460 is about 53.7699403211.

Subtracting from 155460 its reverse (64551), we obtain a palindrome (90909).

The spelling of 155460 in words is "one hundred fifty-five thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2591 5182 7773 10364 12955 15546 25910 31092 38865 51820 77730 155460