Base | Representation |
---|---|
bin | 1000111010000100… |
… | …1001100010011010 |
3 | 20011122012011010201 |
4 | 2032201021202122 |
5 | 14344102220430 |
6 | 1033132332414 |
7 | 113152425226 |
oct | 21641114232 |
9 | 6148164121 |
10 | 2391054490 |
11 | 10177626a0 |
12 | 56891410a |
13 | 2c14a6056 |
14 | 1897b1786 |
15 | dedaa8ca |
hex | 8e84989a |
2391054490 has 48 divisors (see below), whose sum is σ = 4851718560. Its totient is φ = 841389600.
The previous prime is 2391054481. The next prime is 2391054499. The reversal of 2391054490 is 944501932.
It is an interprime number because it is at equal distance from previous prime (2391054481) and next prime (2391054499).
It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (2391054499) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94401 + ... + 117019.
It is an arithmetic number, because the mean of its divisors is an integer number (101077470).
Almost surely, 22391054490 is an apocalyptic number.
2391054490 is an abundant number, since it is smaller than the sum of its proper divisors (2460664070).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2391054490 is a wasteful number, since it uses less digits than its factorization.
2391054490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22699 (or 22668 counting only the distinct ones).
The product of its (nonzero) digits is 38880, while the sum is 37.
The square root of 2391054490 is about 48898.4098923472. The cubic root of 2391054490 is about 1337.2003793873.
It can be divided in two parts, 23910 and 54490, that added together give a square (78400 = 2802).
The spelling of 2391054490 in words is "two billion, three hundred ninety-one million, fifty-four thousand, four hundred ninety".
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