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154830030 = 23515313371
BaseRepresentation
bin10010011101010…
…00010011001110
3101210100011212120
421032220103032
5304114030110
623210313410
73560014335
oct1116502316
9353304776
10154830030
117a441103
1243a28866
1326100504
14167c4d1c
15d8d5870
hex93a84ce

154830030 has 32 divisors (see below), whose sum is σ = 371945088. Its totient is φ = 41248800.

The previous prime is 154830029. The next prime is 154830047. The reversal of 154830030 is 30038451.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44245 + ... + 47615.

It is an arithmetic number, because the mean of its divisors is an integer number (11623284).

Almost surely, 2154830030 is an apocalyptic number.

154830030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154830030 is an abundant number, since it is smaller than the sum of its proper divisors (217115058).

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

154830030 is a wasteful number, since it uses less digits than its factorization.

154830030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4912.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 154830030 is about 12443.0715661367. The cubic root of 154830030 is about 536.9721141400.

Adding to 154830030 its reverse (30038451), we get a palindrome (184868481).

The spelling of 154830030 in words is "one hundred fifty-four million, eight hundred thirty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 1531 3062 3371 4593 6742 7655 9186 10113 15310 16855 20226 22965 33710 45930 50565 101130 5161001 10322002 15483003 25805005 30966006 51610010 77415015 154830030