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70107447 = 323369149
BaseRepresentation
bin1000010110111…
…00000100110111
311212220211100010
410023130010313
5120421414242
610542351303
71510621614
oct413340467
9155824303
1070107447
1136634843
121b58b533
13116a86c7
14944d50b
15624c89c
hex42dc137

70107447 has 4 divisors (see below), whose sum is σ = 93476600. Its totient is φ = 46738296.

The previous prime is 70107437. The next prime is 70107449. The reversal of 70107447 is 74470107.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74470107 = 324823369.

It is not a de Polignac number, because 70107447 - 24 = 70107431 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 (70107449) 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 3 ways as a sum of consecutive naturals, for example, 11684572 + ... + 11684577.

It is an arithmetic number, because the mean of its divisors is an integer number (23369150).

Almost surely, 270107447 is an apocalyptic number.

70107447 is a deficient number, since it is larger than the sum of its proper divisors (23369153).

70107447 is a wasteful number, since it uses less digits than its factorization.

70107447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23369152.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 70107447 is about 8373.0189895879. The cubic root of 70107447 is about 412.3392887260.

The spelling of 70107447 in words is "seventy million, one hundred seven thousand, four hundred forty-seven".

Divisors: 1 3 23369149 70107447