Search a number
-
+
70992347989 = 1731387929567
BaseRepresentation
bin100001000011101111…
…0010100001101010101
320210020120121221101211
41002013132110031111
52130343020113424
652340300221421
75062154000323
oct1020736241525
9223216557354
1070992347989
1128120369882
121191323a871
136904c05904
143616730d13
151ca77ceb94
hex1087794355

70992347989 has 8 divisors (see below), whose sum is σ = 71410268160. Its totient is φ = 70574515056.

The previous prime is 70992347917. The next prime is 70992347999. The reversal of 70992347989 is 98974329907.

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

It is a cyclic number.

It is not a de Polignac number, because 70992347989 - 27 = 70992347861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70992347999) 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, 2386284 + ... + 2415850.

It is an arithmetic number, because the mean of its divisors is an integer number (8926283520).

Almost surely, 270992347989 is an apocalyptic number.

It is an amenable number.

70992347989 is a deficient number, since it is larger than the sum of its proper divisors (417920171).

70992347989 is a wasteful number, since it uses less digits than its factorization.

70992347989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43619.

The product of its (nonzero) digits is 61725888, while the sum is 67.

The spelling of 70992347989 in words is "seventy billion, nine hundred ninety-two million, three hundred forty-seven thousand, nine hundred eighty-nine".

Divisors: 1 173 13879 29567 2401067 5115091 410360393 70992347989