| Base | Representation |
|---|---|
| bin | 10001010100001… |
| … | …01100111100000 |
| 3 | 101010022111121200 |
| 4 | 20222011213200 |
| 5 | 244141011114 |
| 6 | 22225121200 |
| 7 | 3412416450 |
| oct | 1052054740 |
| 9 | 333274550 |
| 10 | 145250784 |
| 11 | 74a99078 |
| 12 | 40789200 |
| 13 | 24128313 |
| 14 | 1540dd60 |
| 15 | cb42409 |
| hex | 8a859e0 |
145250784 has 144 divisors (see below), whose sum is σ = 477116640. Its totient is φ = 41057280.
The previous prime is 145250783. The next prime is 145250813. The reversal of 145250784 is 487052541.
145250784 is a `hidden beast` number, since 145 + 2 + 507 + 8 + 4 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a super-2 number, since 2×1452507842 = 42195580505229312, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145250783) 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 23 ways as a sum of consecutive naturals, for example, 219414 + ... + 220074.
It is an arithmetic number, because the mean of its divisors is an integer number (3313310).
Almost surely, 2145250784 is an apocalyptic number.
145250784 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 145250784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238558320).
145250784 is an abundant number, since it is smaller than the sum of its proper divisors (331865856).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145250784 is a wasteful number, since it uses less digits than its factorization.
145250784 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 793 (or 782 counting only the distinct ones).
The product of its (nonzero) digits is 44800, while the sum is 36.
The square root of 145250784 is about 12052.0033189508. The cubic root of 145250784 is about 525.6614899947.
The spelling of 145250784 in words is "one hundred forty-five million, two hundred fifty thousand, seven hundred eighty-four".
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