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70442823 = 31119112349
BaseRepresentation
bin1000011001011…
…01111101000111
311220112212101110
410030231331013
5121013132243
610553500103
71513516443
oct414557507
9156485343
1070442823
1136843810
121b711633
1311795259
1494d9823
1562b6e33
hex432df47

70442823 has 16 divisors (see below), whose sum is σ = 107856000. Its totient is φ = 40445280.

The previous prime is 70442821. The next prime is 70442831. The reversal of 70442823 is 32824407.

It is not a de Polignac number, because 70442823 - 21 = 70442821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70442821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55548 + ... + 56801.

It is an arithmetic number, because the mean of its divisors is an integer number (6741000).

Almost surely, 270442823 is an apocalyptic number.

70442823 is a deficient number, since it is larger than the sum of its proper divisors (37413177).

70442823 is a wasteful number, since it uses less digits than its factorization.

70442823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112382.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 70442823 is about 8393.0222804422. The cubic root of 70442823 is about 412.9957514313.

The spelling of 70442823 in words is "seventy million, four hundred forty-two thousand, eight hundred twenty-three".

Divisors: 1 3 11 19 33 57 209 627 112349 337047 1235839 2134631 3707517 6403893 23480941 70442823