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155230 = 2519243
BaseRepresentation
bin100101111001011110
321212221021
4211321132
514431410
63154354
71214365
oct457136
9255837
10155230
11a6699
12759ba
135586a
14407dc
1530eda
hex25e5e

155230 has 24 divisors (see below), whose sum is σ = 301752. Its totient is φ = 57456.

The previous prime is 155219. The next prime is 155231. The reversal of 155230 is 32551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3589 + ... + 3631.

It is an arithmetic number, because the mean of its divisors is an integer number (12573).

2155230 is an apocalyptic number.

155230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155230 is a deficient number, since it is larger than the sum of its proper divisors (146522).

155230 is a wasteful number, since it uses less digits than its factorization.

155230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 155230 is about 393.9923857132. The cubic root of 155230 is about 53.7434100448.

Adding to 155230 its reverse (32551), we get a palindrome (187781).

The spelling of 155230 in words is "one hundred fifty-five thousand, two hundred thirty".

Divisors: 1 2 5 10 19 38 43 86 95 190 215 361 430 722 817 1634 1805 3610 4085 8170 15523 31046 77615 155230