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70983743 = 1092772351
BaseRepresentation
bin1000011101100…
…10000000111111
311221120100101112
410032302000333
5121132434433
611013232235
71521231455
oct416620077
9157510345
1070983743
1137083156
121b93267b
131192451c
1495da9d5
156372348
hex43b203f

70983743 has 8 divisors (see below), whose sum is σ = 71924160. Its totient is φ = 70048800.

The previous prime is 70983719. The next prime is 70983761. The reversal of 70983743 is 34738907.

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 70983743 - 210 = 70982719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70983743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70986743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29018 + ... + 31368.

It is an arithmetic number, because the mean of its divisors is an integer number (8990520).

Almost surely, 270983743 is an apocalyptic number.

70983743 is a deficient number, since it is larger than the sum of its proper divisors (940417).

70983743 is a wasteful number, since it uses less digits than its factorization.

70983743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 70983743 is about 8425.1850424783. The cubic root of 70983743 is about 414.0501681757.

The spelling of 70983743 in words is "seventy million, nine hundred eighty-three thousand, seven hundred forty-three".

Divisors: 1 109 277 2351 30193 256259 651227 70983743