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145230 = 23547103
BaseRepresentation
bin100011011101001110
321101012220
4203131032
514121410
63040210
71143261
oct433516
9241186
10145230
119a128
1270066
1351147
143acd8
152d070
hex2374e

145230 has 32 divisors (see below), whose sum is σ = 359424. Its totient is φ = 37536.

The previous prime is 145219. The next prime is 145253. The reversal of 145230 is 32541.

Adding to 145230 its reverse (32541), we get a palindrome (177771).

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1359 + ... + 1461.

It is an arithmetic number, because the mean of its divisors is an integer number (11232).

2145230 is an apocalyptic number.

145230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179712).

145230 is an abundant number, since it is smaller than the sum of its proper divisors (214194).

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

145230 is a wasteful number, since it uses less digits than its factorization.

145230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 145230 is about 381.0905404231. The cubic root of 145230 is about 52.5636416419.

The spelling of 145230 in words is "one hundred forty-five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 47 94 103 141 206 235 282 309 470 515 618 705 1030 1410 1545 3090 4841 9682 14523 24205 29046 48410 72615 145230