Base | Representation |
---|---|
bin | 111001010101… |
… | …011100111000 |
3 | 1001021121101100 |
4 | 321111130320 |
5 | 12321430242 |
6 | 1254051400 |
7 | 241516311 |
oct | 71253470 |
9 | 31247340 |
10 | 15030072 |
11 | 8536352 |
12 | 5049b60 |
13 | 3163245 |
14 | 1dd3608 |
15 | 14bd54c |
hex | e55738 |
15030072 has 48 divisors (see below), whose sum is σ = 40950000. Its totient is φ = 4980096.
The previous prime is 15030049. The next prime is 15030079. The reversal of 15030072 is 27003051.
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 (15030079) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 13804 + ... + 14852.
It is an arithmetic number, because the mean of its divisors is an integer number (853125).
Almost surely, 215030072 is an apocalyptic number.
15030072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
15030072 is an abundant number, since it is smaller than the sum of its proper divisors (25919928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15030072 is a wasteful number, since it uses less digits than its factorization.
15030072 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1260 (or 1253 counting only the distinct ones).
The product of its (nonzero) digits is 210, while the sum is 18.
The square root of 15030072 is about 3876.8636808637. The cubic root of 15030072 is about 246.7859061516.
The spelling of 15030072 in words is "fifteen million, thirty thousand, seventy-two".
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