Base | Representation |
---|---|
bin | 11100001011101000… |
… | …11001000000101110 |
3 | 1110001102202220202221 |
4 | 32011310121000232 |
5 | 221441240134200 |
6 | 10541200305554 |
7 | 1043635632232 |
oct | 160564310056 |
9 | 43042686687 |
10 | 15130005550 |
11 | 6464548120 |
12 | 2b230122ba |
13 | 157176720a |
14 | a375c65c2 |
15 | 5d844491a |
hex | 385d1902e |
15130005550 has 48 divisors (see below), whose sum is σ = 31120789392. Its totient is φ = 5426438400.
The previous prime is 15130005493. The next prime is 15130005557. The reversal of 15130005550 is 5550003151.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15130005557) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148269 + ... + 228568.
It is an arithmetic number, because the mean of its divisors is an integer number (648349779).
Almost surely, 215130005550 is an apocalyptic number.
15130005550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
15130005550 is an abundant number, since it is smaller than the sum of its proper divisors (15990783842).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15130005550 is a wasteful number, since it uses less digits than its factorization.
15130005550 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 376933 (or 376928 counting only the distinct ones).
The product of its (nonzero) digits is 1875, while the sum is 25.
The spelling of 15130005550 in words is "fifteen billion, one hundred thirty million, five thousand, five hundred fifty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •