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6630071394 = 2319449129529
BaseRepresentation
bin1100010110010111…
…01101110001100010
3122010001122112010210
412023023231301202
5102034244241034
63013521234550
7323204451132
oct61313556142
918101575123
106630071394
1128a2558851
121350492a56
13818792c8b
1446c782ac2
1528c0e58e9
hex18b2edc62

6630071394 has 32 divisors (see below), whose sum is σ = 13989240000. Its totient is φ = 2089027584.

The previous prime is 6630071359. The next prime is 6630071423. The reversal of 6630071394 is 4931700366.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13579 + ... + 115950.

It is an arithmetic number, because the mean of its divisors is an integer number (437163750).

Almost surely, 26630071394 is an apocalyptic number.

6630071394 is an abundant number, since it is smaller than the sum of its proper divisors (7359168606).

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

6630071394 is a wasteful number, since it uses less digits than its factorization.

6630071394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130002.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 6630071394 is about 81425.2503465602. The cubic root of 6630071394 is about 1878.6219902255.

The spelling of 6630071394 in words is "six billion, six hundred thirty million, seventy-one thousand, three hundred ninety-four".

Divisors: 1 2 3 6 19 38 57 114 449 898 1347 2694 8531 17062 25593 51186 129529 259058 388587 777174 2461051 4922102 7383153 14766306 58158521 116317042 174475563 348951126 1105011899 2210023798 3315035697 6630071394