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70230712 = 238778839
BaseRepresentation
bin1000010111110…
…10001010111000
311220011002102111
410023322022320
5120434340322
610545142104
71511644156
oct413721270
9156132374
1070230712
1136709412
121b62a934
131171c846
1494823d6
156274177
hex42fa2b8

70230712 has 8 divisors (see below), whose sum is σ = 131682600. Its totient is φ = 35115352.

The previous prime is 70230683. The next prime is 70230733. The reversal of 70230712 is 21703207.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4389412 + ... + 4389427.

It is an arithmetic number, because the mean of its divisors is an integer number (16460325).

Almost surely, 270230712 is an apocalyptic number.

It is an amenable number.

70230712 is a deficient number, since it is larger than the sum of its proper divisors (61451888).

70230712 is a wasteful number, since it uses less digits than its factorization.

70230712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8778845 (or 8778841 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 70230712 is about 8380.3766025161. The cubic root of 70230712 is about 412.5808096350.

Adding to 70230712 its reverse (21703207), we get a palindrome (91933919).

The spelling of 70230712 in words is "seventy million, two hundred thirty thousand, seven hundred twelve".

Divisors: 1 2 4 8 8778839 17557678 35115356 70230712