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9145071 = 321378163
BaseRepresentation
bin100010111000…
…101011101111
3122012121200100
4202320223233
54320120241
6524002143
7140506005
oct42705357
918177610
109145071
115186911
123090353
131b826b0
141300a75
15c099b6
hex8b8aef

9145071 has 12 divisors (see below), whose sum is σ = 14225848. Its totient is φ = 5627664.

The previous prime is 9145069. The next prime is 9145109. The reversal of 9145071 is 1705419.

9145071 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9145071 - 21 = 9145069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9145051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38965 + ... + 39198.

Almost surely, 29145071 is an apocalyptic number.

9145071 is a deficient number, since it is larger than the sum of its proper divisors (5080777).

9145071 is a wasteful number, since it uses less digits than its factorization.

9145071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78182 (or 78179 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 9145071 is about 3024.0818441305. The cubic root of 9145071 is about 209.1200595263.

The spelling of 9145071 in words is "nine million, one hundred forty-five thousand, seventy-one".

Divisors: 1 3 9 13 39 117 78163 234489 703467 1016119 3048357 9145071