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61995008058 = 2310332501343
BaseRepresentation
bin111001101111001100…
…001100000000111010
312221000112112201022120
4321233030030000322
52003431210224213
644251412102110
74323202605504
oct715714140072
9187015481276
1061995008058
1124323625155
1210022004936
135accb77329
14300180cd74
15192c97b423
hexe6f30c03a

61995008058 has 8 divisors (see below), whose sum is σ = 123990016128. Its totient is φ = 20665002684.

The previous prime is 61995008003. The next prime is 61995008063. The reversal of 61995008058 is 85080059916.

It is a sphenic number, since it is the product of 3 distinct primes.

61995008058 is an admirable number.

It is a super-3 number, since 3×619950080583 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 61995008058.

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 3 ways as a sum of consecutive naturals, for example, 5166250666 + ... + 5166250677.

It is an arithmetic number, because the mean of its divisors is an integer number (15498752016).

Almost surely, 261995008058 is an apocalyptic number.

61995008058 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61995008058 is a wasteful number, since it uses less digits than its factorization.

61995008058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10332501348.

The product of its (nonzero) digits is 777600, while the sum is 51.

The spelling of 61995008058 in words is "sixty-one billion, nine hundred ninety-five million, eight thousand, fifty-eight".

Divisors: 1 2 3 6 10332501343 20665002686 30997504029 61995008058