Base | Representation |
---|---|
bin | 101101001000000… |
… | …010100100010101 |
3 | 1221202120202210111 |
4 | 231020002210111 |
5 | 3022303114024 |
6 | 203042523021 |
7 | 24522044200 |
oct | 5510024425 |
9 | 1852522714 |
10 | 757082389 |
11 | 359398228 |
12 | 191666471 |
13 | c0b0735b |
14 | 72796937 |
15 | 466eaa94 |
hex | 2d202915 |
757082389 has 6 divisors (see below), whose sum is σ = 880687734. Its totient is φ = 648927720.
The previous prime is 757082387. The next prime is 757082393. The reversal of 757082389 is 983280757.
It can be written as a sum of positive squares in only one way, i.e., 687226225 + 69856164 = 26215^2 + 8358^2 .
It is not a de Polignac number, because 757082389 - 21 = 757082387 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 15450661 = 757082389 / (7 + 5 + 7 + 0 + 8 + 2 + 3 + 8 + 9).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (757082387) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7725282 + ... + 7725379.
It is an arithmetic number, because the mean of its divisors is an integer number (146781289).
Almost surely, 2757082389 is an apocalyptic number.
It is an amenable number.
757082389 is a deficient number, since it is larger than the sum of its proper divisors (123605345).
757082389 is a wasteful number, since it uses less digits than its factorization.
757082389 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15450675 (or 15450668 counting only the distinct ones).
The product of its (nonzero) digits is 846720, while the sum is 49.
The square root of 757082389 is about 27515.1301832283. The cubic root of 757082389 is about 911.4112422447.
The spelling of 757082389 in words is "seven hundred fifty-seven million, eighty-two thousand, three hundred eighty-nine".
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