Base | Representation |
---|---|
bin | 1101000101110… |
… | …0010001110000 |
3 | 10211022102000112 |
4 | 3101130101300 |
5 | 103023411140 |
6 | 5240440452 |
7 | 1234450511 |
oct | 321342160 |
9 | 124272015 |
10 | 54903920 |
11 | 28aa0145 |
12 | 16479128 |
13 | b4b4536 |
14 | 7412a08 |
15 | 4c47c65 |
hex | 345c470 |
54903920 has 80 divisors (see below), whose sum is σ = 137803680. Its totient is φ = 20275200.
The previous prime is 54903913. The next prime is 54903923. The reversal of 54903920 is 2930945.
It is a tau number, because it is divible by the number of its divisors (80).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54903923) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 61880 + ... + 62760.
It is an arithmetic number, because the mean of its divisors is an integer number (1722546).
Almost surely, 254903920 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 54903920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68901840).
54903920 is an abundant number, since it is smaller than the sum of its proper divisors (82899760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
54903920 is a wasteful number, since it uses less digits than its factorization.
54903920 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 954 (or 948 counting only the distinct ones).
The product of its (nonzero) digits is 9720, while the sum is 32.
The square root of 54903920 is about 7409.7179433498. The cubic root of 54903920 is about 380.0736699273.
The spelling of 54903920 in words is "fifty-four million, nine hundred three thousand, nine hundred twenty".
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