Base | Representation |
---|---|
bin | 101010010000011000… |
… | …1010010101111011100 |
3 | 22200020010001012120220 |
4 | 1110200301102233130 |
5 | 2441320442342243 |
6 | 105404241041340 |
7 | 6361503113436 |
oct | 1244061225734 |
9 | 280203035526 |
10 | 90744105948 |
11 | 35536755991 |
12 | 15706026250 |
13 | 8732035062 |
14 | 456ba77656 |
15 | 2561862783 |
hex | 1520c52bdc |
90744105948 has 48 divisors (see below), whose sum is σ = 217518903840. Its totient is φ = 29422393344.
The previous prime is 90744105943. The next prime is 90744105961. The reversal of 90744105948 is 84950144709.
It is a self number, because there is not a number n which added to its sum of digits gives 90744105948.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90744105943) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1700440 + ... + 1752992.
It is an arithmetic number, because the mean of its divisors is an integer number (4531643830).
Almost surely, 290744105948 is an apocalyptic number.
It is an amenable number.
90744105948 is an abundant number, since it is smaller than the sum of its proper divisors (126774797892).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90744105948 is a wasteful number, since it uses less digits than its factorization.
90744105948 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56486 (or 56484 counting only the distinct ones).
The product of its (nonzero) digits is 1451520, while the sum is 51.
The spelling of 90744105948 in words is "ninety billion, seven hundred forty-four million, one hundred five thousand, nine hundred forty-eight".
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