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70066423 = 721429927
BaseRepresentation
bin1000010110100…
…10000011110111
311212211202001201
410023102003313
5120414111143
610541433331
71510361200
oct413220367
9155752051
1070066423
1136606a39
121b56b847
1311692b2b
14943c5a7
15624064d
hex42d20f7

70066423 has 6 divisors (see below), whose sum is σ = 81505896. Its totient is φ = 60056892.

The previous prime is 70066397. The next prime is 70066429. The reversal of 70066423 is 32466007.

It is not a de Polignac number, because 70066423 - 225 = 36511991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70066391 and 70066400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70066429) 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 5 ways as a sum of consecutive naturals, for example, 714915 + ... + 715012.

It is an arithmetic number, because the mean of its divisors is an integer number (13584316).

Almost surely, 270066423 is an apocalyptic number.

70066423 is a deficient number, since it is larger than the sum of its proper divisors (11439473).

70066423 is a wasteful number, since it uses less digits than its factorization.

70066423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429941 (or 1429934 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 70066423 is about 8370.5688576106. The cubic root of 70066423 is about 412.2588450249.

The spelling of 70066423 in words is "seventy million, sixty-six thousand, four hundred twenty-three".

Divisors: 1 7 49 1429927 10009489 70066423