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145908027 = 3317331237
BaseRepresentation
bin10001011001001…
…10000100111011
3101011112220012000
420230212010323
5244323024102
622251152043
73421124556
oct1054460473
9334486160
10145908027
11753a7951
1240a45623
13242c8515
141554169d
15cc2201c
hex8b2613b

145908027 has 16 divisors (see below), whose sum is σ = 217416480. Its totient is φ = 96706656.

The previous prime is 145908017. The next prime is 145908031. The reversal of 145908027 is 720809541.

It is not a de Polignac number, because 145908027 - 26 = 145907963 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 145907982 and 145908000.

It is not an unprimeable number, because it can be changed into a prime (145908017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10948 + ... + 20289.

It is an arithmetic number, because the mean of its divisors is an integer number (13588530).

Almost surely, 2145908027 is an apocalyptic number.

145908027 is a deficient number, since it is larger than the sum of its proper divisors (71508453).

145908027 is a wasteful number, since it uses less digits than its factorization.

145908027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31419 (or 31413 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 145908027 is about 12079.2395042072. The cubic root of 145908027 is about 526.4531496205.

The spelling of 145908027 in words is "one hundred forty-five million, nine hundred eight thousand, twenty-seven".

Divisors: 1 3 9 27 173 519 1557 4671 31237 93711 281133 843399 5404001 16212003 48636009 145908027