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70306580081 = 1311210144351
BaseRepresentation
bin100000101111010011…
…0010100011001110001
320201110210020022200102
41001132212110121301
52122441441030311
652144242002145
75036156033063
oct1013646243161
9221423208612
1070306580081
11278a9260241
1211761646355
136825b0a49a
14358d61d733
151c674be43b
hex105e994671

70306580081 has 8 divisors (see below), whose sum is σ = 70850723328. Its totient is φ = 69762550000.

The previous prime is 70306580063. The next prime is 70306580087. The reversal of 70306580081 is 18008560307.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70306580081 is a prime.

It is a super-2 number, since 2×703065800812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70306580087) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1563056 + ... + 1607406.

It is an arithmetic number, because the mean of its divisors is an integer number (8856340416).

Almost surely, 270306580081 is an apocalyptic number.

It is an amenable number.

70306580081 is a deficient number, since it is larger than the sum of its proper divisors (544143247).

70306580081 is a wasteful number, since it uses less digits than its factorization.

70306580081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56583.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 70306580081 in words is "seventy billion, three hundred six million, five hundred eighty thousand, eighty-one".

Divisors: 1 131 12101 44351 1585231 5809981 536691451 70306580081