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157230 = 23251747
BaseRepresentation
bin100110011000101110
321222200100
4212120232
520012410
63211530
71223253
oct463056
9258610
10157230
11a8147
1276ba6
1356748
144142a
15318c0
hex2662e

157230 has 24 divisors (see below), whose sum is σ = 409032. Its totient is φ = 41904.

The previous prime is 157229. The next prime is 157231. The reversal of 157230 is 32751.

157230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (157229) and next prime (157231).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 784 + ... + 963.

It is an arithmetic number, because the mean of its divisors is an integer number (17043).

2157230 is an apocalyptic number.

157230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157230 is an abundant number, since it is smaller than the sum of its proper divisors (251802).

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

157230 is a wasteful number, since it uses less digits than its factorization.

157230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 157230 is about 396.5223827226. The cubic root of 157230 is about 53.9732377677.

Adding to 157230 its reverse (32751), we get a palindrome (189981).

The spelling of 157230 in words is "one hundred fifty-seven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1747 3494 5241 8735 10482 15723 17470 26205 31446 52410 78615 157230