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70239787319 = 1326920085727
BaseRepresentation
bin100000101101010011…
…1100001100100110111
320201022010112220020102
41001122213201210313
52122322341143234
652133454224315
75034415225022
oct1013247414467
9221263486212
1070239787319
112787458a909
12117431b509b
136815022740
1435847d41b9
151c616c8c7e
hex105a9e1937

70239787319 has 8 divisors (see below), whose sum is σ = 75924051840. Its totient is φ = 64595694816.

The previous prime is 70239787313. The next prime is 70239787327. The reversal of 70239787319 is 91378793207.

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-70239787319 is a prime.

It is a super-2 number, since 2×702397873192 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70239787313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10039367 + ... + 10046360.

It is an arithmetic number, because the mean of its divisors is an integer number (9490506480).

Almost surely, 270239787319 is an apocalyptic number.

70239787319 is a deficient number, since it is larger than the sum of its proper divisors (5684264521).

70239787319 is a wasteful number, since it uses less digits than its factorization.

70239787319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20086009.

The product of its (nonzero) digits is 4000752, while the sum is 56.

The spelling of 70239787319 in words is "seventy billion, two hundred thirty-nine million, seven hundred eighty-seven thousand, three hundred nineteen".

Divisors: 1 13 269 3497 20085727 261114451 5403060563 70239787319