Base | Representation |
---|---|
bin | 11101010011001011… |
… | …11010011111010010 |
3 | 1111121021010110110101 |
4 | 32221211322133102 |
5 | 224203412042130 |
6 | 11120520323014 |
7 | 1064544261043 |
oct | 165145723722 |
9 | 44537113411 |
10 | 15730190290 |
11 | 6742311871 |
12 | 307001346a |
13 | 1638bc8c09 |
14 | a931ba8ca |
15 | 620e9c1ca |
hex | 3a997a7d2 |
15730190290 has 32 divisors (see below), whose sum is σ = 28440097920. Its totient is φ = 6264182400.
The previous prime is 15730190261. The next prime is 15730190293. The reversal of 15730190290 is 9209103751.
It is a super-2 number, since 2×157301902902 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (15730190293) 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, 3017206 + ... + 3022414.
It is an arithmetic number, because the mean of its divisors is an integer number (888753060).
Almost surely, 215730190290 is an apocalyptic number.
15730190290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
15730190290 is a deficient number, since it is larger than the sum of its proper divisors (12709907630).
15730190290 is a wasteful number, since it uses less digits than its factorization.
15730190290 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6498.
The product of its (nonzero) digits is 17010, while the sum is 37.
The spelling of 15730190290 in words is "fifteen billion, seven hundred thirty million, one hundred ninety thousand, two hundred ninety".
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