Base | Representation |
---|---|
bin | 1101011101111111… |
… | …10110110100011010 |
3 | 200122221021221022211 |
4 | 12232333312310122 |
5 | 104302110124430 |
6 | 3153304105334 |
7 | 344121665662 |
oct | 65677666432 |
9 | 20587257284 |
10 | 7230942490 |
11 | 3080751132 |
12 | 149976524a |
13 | 8b31051c5 |
14 | 4c84b51a2 |
15 | 2c4c3672a |
hex | 1aeff6d1a |
7230942490 has 16 divisors (see below), whose sum is σ = 13144566600. Its totient is φ = 2863739200.
The previous prime is 7230942421. The next prime is 7230942493. The reversal of 7230942490 is 942490327.
It can be written as a sum of positive squares in 4 ways, for example, as 7122178449 + 108764041 = 84393^2 + 10429^2 .
It is not an unprimeable number, because it can be changed into a prime (7230942493) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3578665 + ... + 3580684.
Almost surely, 27230942490 is an apocalyptic number.
7230942490 is a deficient number, since it is larger than the sum of its proper divisors (5913624110).
7230942490 is a wasteful number, since it uses less digits than its factorization.
7230942490 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7159457.
The product of its (nonzero) digits is 108864, while the sum is 40.
The square root of 7230942490 is about 85034.9486387803. The cubic root of 7230942490 is about 1933.7409869341.
The spelling of 7230942490 in words is "seven billion, two hundred thirty million, nine hundred forty-two thousand, four hundred ninety".
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