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70681047472 = 247631080781
BaseRepresentation
bin100000111010011101…
…0110011000110110000
320202102212212020101001
41001310322303012300
52124223322004342
652245340051344
75051353663540
oct1016472630660
9222385766331
1070681047472
1127a80677122
1211846b33b54
13688557c319
1435c7259320
151c8a2dc8b7
hex1074eb31b0

70681047472 has 20 divisors (see below), whose sum is σ = 156508033936. Its totient is φ = 30291877440.

The previous prime is 70681047461. The next prime is 70681047533. The reversal of 70681047472 is 27474018607.

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, 315540279 + ... + 315540502.

Almost surely, 270681047472 is an apocalyptic number.

It is an amenable number.

70681047472 is an abundant number, since it is smaller than the sum of its proper divisors (85826986464).

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

70681047472 is a wasteful number, since it uses less digits than its factorization.

70681047472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631080796 (or 631080790 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 46.

The spelling of 70681047472 in words is "seventy billion, six hundred eighty-one million, forty-seven thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 631080781 1262161562 2524323124 4417565467 5048646248 8835130934 10097292496 17670261868 35340523736 70681047472