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145000146 = 2326989839
BaseRepresentation
bin10001010010010…
…00011011010010
3101002211202210210
420221020123102
5244110001041
622215504550
73410323644
oct1051103322
9332752723
10145000146
1174937835
1240688156
132406b205
1415386894
15cae3016
hex8a486d2

145000146 has 16 divisors (see below), whose sum is σ = 291081600. Its totient is φ = 48153168.

The previous prime is 145000117. The next prime is 145000169. The reversal of 145000146 is 641000541.

145000146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43306 + ... + 46533.

It is an arithmetic number, because the mean of its divisors is an integer number (18192600).

Almost surely, 2145000146 is an apocalyptic number.

145000146 is an abundant number, since it is smaller than the sum of its proper divisors (146081454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145000146 is a wasteful number, since it uses less digits than its factorization.

145000146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90113.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 145000146 is about 12041.6006411108. The cubic root of 145000146 is about 525.3589635765.

Adding to 145000146 its reverse (641000541), we get a palindrome (786000687).

The spelling of 145000146 in words is "one hundred forty-five million, one hundred forty-six", and thus it is an aban number.

Divisors: 1 2 3 6 269 538 807 1614 89839 179678 269517 539034 24166691 48333382 72500073 145000146