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15206506230 = 235506883541
BaseRepresentation
bin11100010100110000…
…01101111011110110
31110020202201112222110
432022120031323312
5222120331144410
610552532111450
71045555112256
oct161230157366
943222645873
1015206506230
1164a3749223
122b44765586
1315845708a6
14a4381b966
155e0006720
hex38a60def6

15206506230 has 16 divisors (see below), whose sum is σ = 36495615024. Its totient is φ = 4055068320.

The previous prime is 15206506213. The next prime is 15206506241. The reversal of 15206506230 is 3260560251.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 506883541 = 15206506230 / (1 + 5 + 2 + 0 + 6 + 5 + 0 + 6 + 2 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253441741 + ... + 253441800.

It is an arithmetic number, because the mean of its divisors is an integer number (2280975939).

Almost surely, 215206506230 is an apocalyptic number.

15206506230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15206506230 is an abundant number, since it is smaller than the sum of its proper divisors (21289108794).

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

15206506230 is a wasteful number, since it uses less digits than its factorization.

15206506230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506883551.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 15206506230 in words is "fifteen billion, two hundred six million, five hundred six thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 506883541 1013767082 1520650623 2534417705 3041301246 5068835410 7603253115 15206506230