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145155065 = 5112639183
BaseRepresentation
bin10001010011011…
…10001111111001
3101010010122022112
420221232033321
5244124430230
622223102105
73411540416
oct1051561771
9333118275
10145155065
1174a33170
1240741935
13240c3893
14153c710d
15cb23d95
hex8a6e3f9

145155065 has 8 divisors (see below), whose sum is σ = 190021248. Its totient is φ = 105567280.

The previous prime is 145155037. The next prime is 145155077. The reversal of 145155065 is 560551541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145155065 - 220 = 144106489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1319537 + ... + 1319646.

It is an arithmetic number, because the mean of its divisors is an integer number (23752656).

Almost surely, 2145155065 is an apocalyptic number.

It is an amenable number.

145155065 is a deficient number, since it is larger than the sum of its proper divisors (44866183).

145155065 is a wasteful number, since it uses less digits than its factorization.

145155065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639199.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 145155065 is about 12048.0315819639. The cubic root of 145155065 is about 525.5459958418.

The spelling of 145155065 in words is "one hundred forty-five million, one hundred fifty-five thousand, sixty-five".

Divisors: 1 5 11 55 2639183 13195915 29031013 145155065