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15300012 = 22371314011
BaseRepresentation
bin111010010111…
…010110101100
31001210022200010
4322113112230
512404100022
61303533220
7244022310
oct72272654
931708603
1015300012
118700142
12515a210
133229080
142063b40
15152350c
hexe975ac

15300012 has 48 divisors (see below), whose sum is σ = 43941632. Its totient is φ = 4034880.

The previous prime is 15300007. The next prime is 15300013. The reversal of 15300012 is 21000351.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (15300013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5914 + ... + 8097.

Almost surely, 215300012 is an apocalyptic number.

15300012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15300012 is an abundant number, since it is smaller than the sum of its proper divisors (28641620).

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

15300012 is a wasteful number, since it uses less digits than its factorization.

15300012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14038 (or 14036 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 15300012 is about 3911.5229770513. The cubic root of 15300012 is about 248.2545729644.

Adding to 15300012 its reverse (21000351), we get a palindrome (36300363).

The spelling of 15300012 in words is "fifteen million, three hundred thousand, twelve".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 14011 28022 42033 56044 84066 98077 168132 182143 196154 294231 364286 392308 546429 588462 728572 1092858 1176924 1275001 2185716 2550002 3825003 5100004 7650006 15300012