Base | Representation |
---|---|
bin | 10001010101011… |
… | …00101101110011 |
3 | 101010121122022001 |
4 | 20222230231303 |
5 | 244211122211 |
6 | 22232354431 |
7 | 3413654401 |
oct | 1052545563 |
9 | 333548261 |
10 | 145410931 |
11 | 75098426 |
12 | 40845a17 |
13 | 24183193 |
14 | 15452471 |
15 | cb74ac1 |
hex | 8aacb73 |
145410931 has 4 divisors (see below), whose sum is σ = 145436512. Its totient is φ = 145385352.
The previous prime is 145410913. The next prime is 145410949. The reversal of 145410931 is 139014541.
145410931 is a nontrivial binomial coefficient, being equal to C(17054, 2).
It is a semiprime because it is the product of two primes.
It is an interprime number because it is at equal distance from previous prime (145410913) and next prime (145410949).
It is a 3-Lehmer number, since φ(145410931) divides (145410931-1)3.
It is a cyclic number.
It is not a de Polignac number, because 145410931 - 27 = 145410803 is a prime.
It is a super-2 number, since 2×1454109312 = 42288677708573522, which contains 22 as substring.
It is a deceptive number, since it divides R145410930.
It is a self number, because there is not a number n which added to its sum of digits gives 145410931.
It is not an unprimeable number, because it can be changed into a prime (145410961) 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, 1 + ... + 17053.
It is an arithmetic number, because the mean of its divisors is an integer number (36359128).
Almost surely, 2145410931 is an apocalyptic number.
145410931 is the 17053-rd triangular number and also the 8527-th hexagonal number.
145410931 is the 5685-th centered nonagonal number.
145410931 is a deficient number, since it is larger than the sum of its proper divisors (25581).
145410931 is an equidigital number, since it uses as much as digits as its factorization.
145410931 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25580.
The product of its (nonzero) digits is 2160, while the sum is 28.
The square root of 145410931 is about 12058.6454877818. The cubic root of 145410931 is about 525.8546092982.
The spelling of 145410931 in words is "one hundred forty-five million, four hundred ten thousand, nine hundred thirty-one".
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