Base | Representation |
---|---|
bin | 10001010100010… |
… | …00000101000110 |
3 | 101010100000110020 |
4 | 20222020011012 |
5 | 244141321440 |
6 | 22225240010 |
7 | 3412461036 |
oct | 1052100506 |
9 | 333300406 |
10 | 145260870 |
11 | 74aa5707 |
12 | 40793006 |
13 | 2412caa1 |
14 | 154138c6 |
15 | cb453d0 |
hex | 8a88146 |
145260870 has 32 divisors (see below), whose sum is σ = 363785472. Its totient is φ = 37051872.
The previous prime is 145260851. The next prime is 145260887. The reversal of 145260870 is 78062541.
It is a super-2 number, since 2×1452608702 = 42201440706313800, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104572 + ... + 105951.
It is an arithmetic number, because the mean of its divisors is an integer number (11368296).
Almost surely, 2145260870 is an apocalyptic number.
145260870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
145260870 is an abundant number, since it is smaller than the sum of its proper divisors (218524602).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145260870 is a wasteful number, since it uses less digits than its factorization.
145260870 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 210556.
The product of its (nonzero) digits is 13440, while the sum is 33.
The square root of 145260870 is about 12052.4217483458. The cubic root of 145260870 is about 525.6736567657.
The spelling of 145260870 in words is "one hundred forty-five million, two hundred sixty thousand, eight hundred seventy".
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