Base | Representation |
---|---|
bin | 1011001000111001… |
… | …0010010011010111 |
3 | 21201101101021121000 |
4 | 2302032102103113 |
5 | 22110430330211 |
6 | 1212411554343 |
7 | 134045224620 |
oct | 26216222327 |
9 | 7641337530 |
10 | 2990089431 |
11 | 12a491149a |
12 | 6b545b9b3 |
13 | 3886245b4 |
14 | 205186a47 |
15 | 127787656 |
hex | b23924d7 |
2990089431 has 16 divisors (see below), whose sum is σ = 5062585600. Its totient is φ = 1708622424.
The previous prime is 2990089423. The next prime is 2990089471. The reversal of 2990089431 is 1349800992.
2990089431 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 2990089431 - 23 = 2990089423 is a prime.
It is a super-2 number, since 2×29900894312 = 17881269610755807522, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2990089471) 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, 7910101 + ... + 7910478.
It is an arithmetic number, because the mean of its divisors is an integer number (316411600).
Almost surely, 22990089431 is an apocalyptic number.
2990089431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
2990089431 is a deficient number, since it is larger than the sum of its proper divisors (2072496169).
2990089431 is a wasteful number, since it uses less digits than its factorization.
2990089431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15820595 (or 15820589 counting only the distinct ones).
The product of its (nonzero) digits is 139968, while the sum is 45.
The square root of 2990089431 is about 54681.7102055157. The cubic root of 2990089431 is about 1440.6596500315.
The spelling of 2990089431 in words is "two billion, nine hundred ninety million, eighty-nine thousand, four hundred thirty-one".
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