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71885084 = 22296110159
BaseRepresentation
bin1000100100011…
…10000100011100
312000021010210112
410102032010130
5121400310314
611044425152
71532004335
oct422160434
9160233715
1071885084
1137639367
12200a81b8
1311b7b86b
14979328c
15649e43e
hex448e11c

71885084 has 24 divisors (see below), whose sum is σ = 132283200. Its totient is φ = 34130880.

The previous prime is 71885081. The next prime is 71885111. The reversal of 71885084 is 48058817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71885081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1997 + ... + 12155.

It is an arithmetic number, because the mean of its divisors is an integer number (5511800).

Almost surely, 271885084 is an apocalyptic number.

It is an amenable number.

71885084 is a deficient number, since it is larger than the sum of its proper divisors (60398116).

71885084 is a wasteful number, since it uses less digits than its factorization.

71885084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10253 (or 10251 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 71885084 is about 8478.5071799227. The cubic root of 71885084 is about 415.7953181321.

The spelling of 71885084 in words is "seventy-one million, eight hundred eighty-five thousand, eighty-four".

Divisors: 1 2 4 29 58 61 116 122 244 1769 3538 7076 10159 20318 40636 294611 589222 619699 1178444 1239398 2478796 17971271 35942542 71885084