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70843120989 = 329814288747
BaseRepresentation
bin100000111111010010…
…1000011110101011101
320202212011211102102220
41001332211003311131
52130041314332424
652313405535553
75055362410224
oct1017645036535
9222764742386
1070843120989
1128054105383
12118912745b9
1368b0017804
1436009a7cbb
151c99654579
hex107e943d5d

70843120989 has 8 divisors (see below), whose sum is σ = 97714649760. Its totient is φ = 45600169776.

The previous prime is 70843120949. The next prime is 70843120991. The reversal of 70843120989 is 98902134807.

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

It is not a de Polignac number, because 70843120989 - 215 = 70843088221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70843120949) 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, 407144287 + ... + 407144460.

It is an arithmetic number, because the mean of its divisors is an integer number (12214331220).

Almost surely, 270843120989 is an apocalyptic number.

It is an amenable number.

70843120989 is a deficient number, since it is larger than the sum of its proper divisors (26871528771).

70843120989 is a wasteful number, since it uses less digits than its factorization.

70843120989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814288779.

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 70843120989 in words is "seventy billion, eight hundred forty-three million, one hundred twenty thousand, nine hundred eighty-nine".

Divisors: 1 3 29 87 814288747 2442866241 23614373663 70843120989