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145078175 = 5211527557
BaseRepresentation
bin10001010010110…
…11011110011111
3101002222201211202
420221123132133
5244120000200
622221310115
73411100304
oct1051333637
9332881752
10145078175
1174990420
124070533b
1324097898
14153a70ab
15cb0b1d5
hex8a5b79f

145078175 has 12 divisors (see below), whose sum is σ = 196251576. Its totient is φ = 105511200.

The previous prime is 145078169. The next prime is 145078189. The reversal of 145078175 is 571870541.

It is a happy number.

It is not a de Polignac number, because 145078175 - 26 = 145078111 is a prime.

It is a super-2 number, since 2×1450781752 = 42095353722661250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 263504 + ... + 264053.

It is an arithmetic number, because the mean of its divisors is an integer number (16354298).

Almost surely, 2145078175 is an apocalyptic number.

145078175 is a deficient number, since it is larger than the sum of its proper divisors (51173401).

145078175 is a wasteful number, since it uses less digits than its factorization.

145078175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527578 (or 527573 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 38.

The square root of 145078175 is about 12044.8401815881. The cubic root of 145078175 is about 525.4531839036.

The spelling of 145078175 in words is "one hundred forty-five million, seventy-eight thousand, one hundred seventy-five".

Divisors: 1 5 11 25 55 275 527557 2637785 5803127 13188925 29015635 145078175