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71474930 = 2567107997
BaseRepresentation
bin1000100001010…
…01111011110010
311222111022011122
410100221323302
5121244144210
611031542242
71525345502
oct420517362
9158438148
1071474930
113738919a
121bb2a982
1311a66c77
1496c7a02
15641cb55
hex4429ef2

71474930 has 32 divisors (see below), whose sum is σ = 131927616. Its totient is φ = 27872064.

The previous prime is 71474929. The next prime is 71474939. The reversal of 71474930 is 3947417.

It is not an unprimeable number, because it can be changed into a prime (71474939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71192 + ... + 72188.

It is an arithmetic number, because the mean of its divisors is an integer number (4122738).

Almost surely, 271474930 is an apocalyptic number.

71474930 is a deficient number, since it is larger than the sum of its proper divisors (60452686).

71474930 is a wasteful number, since it uses less digits than its factorization.

71474930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 71474930 is about 8454.2847124993. The cubic root of 71474930 is about 415.0030096071.

The spelling of 71474930 in words is "seventy-one million, four hundred seventy-four thousand, nine hundred thirty".

Divisors: 1 2 5 10 67 107 134 214 335 535 670 997 1070 1994 4985 7169 9970 14338 35845 66799 71690 106679 133598 213358 333995 533395 667990 1066790 7147493 14294986 35737465 71474930