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145501828 = 2289408713
BaseRepresentation
bin10001010110000…
…10111010000100
3101010210020222121
420223002322010
5244222024303
622234335324
73414513403
oct1053027204
9333706877
10145501828
117514a74a
124088a544
13241b5674
141547763a
15cb919bd
hex8ac2e84

145501828 has 12 divisors (see below), whose sum is σ = 257489820. Its totient is φ = 71933312.

The previous prime is 145501819. The next prime is 145501891. The reversal of 145501828 is 828105541.

145501828 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13527684 + 131974144 = 3678^2 + 11488^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145501793 and 145501802.

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 3 ways as a sum of consecutive naturals, for example, 204001 + ... + 204712.

It is an arithmetic number, because the mean of its divisors is an integer number (21457485).

Almost surely, 2145501828 is an apocalyptic number.

It is an amenable number.

145501828 is a deficient number, since it is larger than the sum of its proper divisors (111987992).

145501828 is a wasteful number, since it uses less digits than its factorization.

145501828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408806 (or 408804 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 145501828 is about 12062.4138546147. The cubic root of 145501828 is about 525.9641578029.

The spelling of 145501828 in words is "one hundred forty-five million, five hundred one thousand, eight hundred twenty-eight".

Divisors: 1 2 4 89 178 356 408713 817426 1634852 36375457 72750914 145501828