Base | Representation |
---|---|
bin | 10000001111100100… |
… | …00010101001011100 |
3 | 211111202010221200201 |
4 | 20013302002221130 |
5 | 120324421240043 |
6 | 4001154233244 |
7 | 426046653163 |
oct | 100762025134 |
9 | 24452127621 |
10 | 8720493148 |
11 | 3775544634 |
12 | 1834585824 |
13 | a8c8a9223 |
14 | 5ca2583da |
15 | 3608b9c4d |
hex | 207c82a5c |
8720493148 has 48 divisors (see below), whose sum is σ = 16375726080. Its totient is φ = 4052752704.
The previous prime is 8720493143. The next prime is 8720493149. The reversal of 8720493148 is 8413940278.
It is a Harshad number since it is a multiple of its sum of digits (46).
It is a junction number, because it is equal to n+sod(n) for n = 8720493098 and 8720493107.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8720493143) 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, 4352715 + ... + 4354717.
It is an arithmetic number, because the mean of its divisors is an integer number (341160960).
Almost surely, 28720493148 is an apocalyptic number.
It is an amenable number.
8720493148 is a deficient number, since it is larger than the sum of its proper divisors (7655232932).
8720493148 is a wasteful number, since it uses less digits than its factorization.
8720493148 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3346 (or 3344 counting only the distinct ones).
The product of its (nonzero) digits is 387072, while the sum is 46.
The square root of 8720493148 is about 93383.5807195248. The cubic root of 8720493148 is about 2058.3237336004.
The spelling of 8720493148 in words is "eight billion, seven hundred twenty million, four hundred ninety-three thousand, one hundred forty-eight".
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