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145495428 = 22313932663
BaseRepresentation
bin10001010110000…
…01010110000100
3101010202221012120
420223001112010
5244221323203
622234245540
73414455631
oct1053012604
9333687176
10145495428
1175145961
12408868b0
13241b2790
1415475188
15cb8eb53
hex8ac1584

145495428 has 24 divisors (see below), whose sum is σ = 365604288. Its totient is φ = 44767776.

The previous prime is 145495421. The next prime is 145495439. The reversal of 145495428 is 824594541.

145495428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145495428.

It is not an unprimeable number, because it can be changed into a prime (145495421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466176 + ... + 466487.

It is an arithmetic number, because the mean of its divisors is an integer number (15233512).

Almost surely, 2145495428 is an apocalyptic number.

It is an amenable number.

145495428 is an abundant number, since it is smaller than the sum of its proper divisors (220108860).

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

145495428 is a wasteful number, since it uses less digits than its factorization.

145495428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932683 (or 932681 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 145495428 is about 12062.1485648287. The cubic root of 145495428 is about 525.9564460557.

The spelling of 145495428 in words is "one hundred forty-five million, four hundred ninety-five thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 932663 1865326 2797989 3730652 5595978 11191956 12124619 24249238 36373857 48498476 72747714 145495428