Base | Representation |
---|---|
bin | 11100010111011010… |
… | …00101010001001010 |
3 | 1110022022120210202210 |
4 | 32023231011101022 |
5 | 222142030043340 |
6 | 10555045005550 |
7 | 1046245156464 |
oct | 161355052112 |
9 | 43268523683 |
10 | 15228752970 |
11 | 6505263562 |
12 | 2b500b38b6 |
13 | 158905c842 |
14 | a4676d134 |
15 | 5e1e4d180 |
hex | 38bb4544a |
15228752970 has 64 divisors (see below), whose sum is σ = 36921456000. Its totient is φ = 4019694336.
The previous prime is 15228752921. The next prime is 15228752971. The reversal of 15228752970 is 7925782251.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (15228752971) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4671201 + ... + 4674459.
It is an arithmetic number, because the mean of its divisors is an integer number (576897750).
Almost surely, 215228752970 is an apocalyptic number.
15228752970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
15228752970 is an abundant number, since it is smaller than the sum of its proper divisors (21692703030).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15228752970 is a wasteful number, since it uses less digits than its factorization.
15228752970 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4807.
The product of its (nonzero) digits is 705600, while the sum is 48.
The spelling of 15228752970 in words is "fifteen billion, two hundred twenty-eight million, seven hundred fifty-two thousand, nine hundred seventy".
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