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71148006 = 23210936263
BaseRepresentation
bin1000011110110…
…10000111100110
311221212200201100
410033122013212
5121203214011
611020540530
71522514406
oct417320746
9157780640
1071148006
1137185606
121b9b1746
1311981217
149640806
1563a5d56
hex43da1e6

71148006 has 24 divisors (see below), whose sum is σ = 155572560. Its totient is φ = 23497776.

The previous prime is 71148001. The next prime is 71148017. The reversal of 71148006 is 60084117.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71148001) 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, 16170 + ... + 20093.

It is an arithmetic number, because the mean of its divisors is an integer number (6482190).

Almost surely, 271148006 is an apocalyptic number.

71148006 is an abundant number, since it is smaller than the sum of its proper divisors (84424554).

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

71148006 is a wasteful number, since it uses less digits than its factorization.

71148006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36380 (or 36377 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 71148006 is about 8434.9277412435. The cubic root of 71148006 is about 414.3693056963.

The spelling of 71148006 in words is "seventy-one million, one hundred forty-eight thousand, six".

Divisors: 1 2 3 6 9 18 109 218 327 654 981 1962 36263 72526 108789 217578 326367 652734 3952667 7905334 11858001 23716002 35574003 71148006