Base | Representation |
---|---|
bin | 1001000001100… |
… | …01100000000111 |
3 | 12021102222012021 |
4 | 10200301200013 |
5 | 123334401411 |
6 | 11302304011 |
7 | 1606304245 |
oct | 440614007 |
9 | 167388167 |
10 | 75700231 |
11 | 39804782 |
12 | 21428007 |
13 | 128b6249 |
14 | a0a7795 |
15 | 69a4a71 |
hex | 4831807 |
75700231 has 4 divisors (see below), whose sum is σ = 75764464. Its totient is φ = 75636000.
The previous prime is 75700223. The next prime is 75700241. The reversal of 75700231 is 13200757.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13200757 = 739 ⋅17863.
It is a cyclic number.
It is not a de Polignac number, because 75700231 - 23 = 75700223 is a prime.
It is a super-2 number, since 2×757002312 = 11461049946906722, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 75700196 and 75700205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (75700241) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30315 + ... + 32716.
It is an arithmetic number, because the mean of its divisors is an integer number (18941116).
Almost surely, 275700231 is an apocalyptic number.
75700231 is a deficient number, since it is larger than the sum of its proper divisors (64233).
75700231 is a wasteful number, since it uses less digits than its factorization.
75700231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64232.
The product of its (nonzero) digits is 1470, while the sum is 25.
The square root of 75700231 is about 8700.5879686375. The cubic root of 75700231 is about 423.0247085441.
Adding to 75700231 its reverse (13200757), we get a palindrome (88900988).
The spelling of 75700231 in words is "seventy-five million, seven hundred thousand, two hundred thirty-one".
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