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71146630 = 2567106189
BaseRepresentation
bin1000011110110…
…01110010000110
311221212121211101
410033121302012
5121203143010
611020530314
71522510402
oct417316206
9157777741
1071146630
1137184575
121b9b099a
13119806c9
149640102
1563a573a
hex43d9c86

71146630 has 16 divisors (see below), whose sum is σ = 129976560. Its totient is φ = 28033632.

The previous prime is 71146627. The next prime is 71146631. The reversal of 71146630 is 3664117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71146631) 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 7 ways as a sum of consecutive naturals, for example, 52425 + ... + 53764.

It is an arithmetic number, because the mean of its divisors is an integer number (8123535).

Almost surely, 271146630 is an apocalyptic number.

71146630 is a deficient number, since it is larger than the sum of its proper divisors (58829930).

71146630 is a wasteful number, since it uses less digits than its factorization.

71146630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106263.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 71146630 is about 8434.8461752423. The cubic root of 71146630 is about 414.3666343830.

The spelling of 71146630 in words is "seventy-one million, one hundred forty-six thousand, six hundred thirty".

Divisors: 1 2 5 10 67 134 335 670 106189 212378 530945 1061890 7114663 14229326 35573315 71146630