Base | Representation |
---|---|
bin | 1001010001101011… |
… | …1011011111110000 |
3 | 20102112112112202120 |
4 | 2110122323133300 |
5 | 20044430244113 |
6 | 1051031114240 |
7 | 115464252024 |
oct | 22432733760 |
9 | 6375475676 |
10 | 2490087408 |
11 | 1068653586 |
12 | 595b12980 |
13 | 308b6b603 |
14 | 1989d0384 |
15 | e891da23 |
hex | 946bb7f0 |
2490087408 has 80 divisors (see below), whose sum is σ = 6782601600. Its totient is φ = 785030400.
The previous prime is 2490087377. The next prime is 2490087443. The reversal of 2490087408 is 8047800942.
It is a self number, because there is not a number n which added to its sum of digits gives 2490087408.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644683 + ... + 648533.
It is an arithmetic number, because the mean of its divisors is an integer number (84782520).
Almost surely, 22490087408 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 2490087408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3391300800).
2490087408 is an abundant number, since it is smaller than the sum of its proper divisors (4292514192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2490087408 is a wasteful number, since it uses less digits than its factorization.
2490087408 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4590 (or 4584 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 42.
The square root of 2490087408 is about 49900.7756252345. The cubic root of 2490087408 is about 1355.4126379510.
The spelling of 2490087408 in words is "two billion, four hundred ninety million, eighty-seven thousand, four hundred eight".
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