Base | Representation |
---|---|
bin | 111010000000… |
… | …101001110110 |
3 | 1001121121010100 |
4 | 322000221312 |
5 | 12343111110 |
6 | 1301534530 |
7 | 243154236 |
oct | 72005166 |
9 | 31547110 |
10 | 15207030 |
11 | 86472a3 |
12 | 5114446 |
13 | 31c5957 |
14 | 203bcc6 |
15 | 1505bc0 |
hex | e80a76 |
15207030 has 48 divisors (see below), whose sum is σ = 41623920. Its totient is φ = 3841344.
The previous prime is 15207013. The next prime is 15207043. The reversal of 15207030 is 3070251.
It is a super-2 number, since 2×152070302 = 462507522841800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 15206994 and 15207012.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2737 + ... + 6156.
It is an arithmetic number, because the mean of its divisors is an integer number (867165).
Almost surely, 215207030 is an apocalyptic number.
15207030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
15207030 is an abundant number, since it is smaller than the sum of its proper divisors (26416890).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15207030 is a wasteful number, since it uses less digits than its factorization.
15207030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8925 (or 8922 counting only the distinct ones).
The product of its (nonzero) digits is 210, while the sum is 18.
The square root of 15207030 is about 3899.6192121796. The cubic root of 15207030 is about 247.7506490452.
Adding to 15207030 its reverse (3070251), we get a palindrome (18277281).
It can be divided in two parts, 152070 and 30, that added together give a square (152100 = 3902).
The spelling of 15207030 in words is "fifteen million, two hundred seven thousand, thirty".
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