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70120132 = 22154911317
BaseRepresentation
bin1000010110111…
…11001011000100
311212221110201221
410023133023010
5120422321012
610542530124
71511003605
oct413371304
9155843657
1070120132
1136643325
121b596944
13116b1404
149453dac
156251507
hex42df2c4

70120132 has 12 divisors (see below), whose sum is σ = 122800300. Its totient is φ = 35034336.

The previous prime is 70120103. The next prime is 70120133. The reversal of 70120132 is 23102107.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50353216 + 19766916 = 7096^2 + 4446^2 .

It is not an unprimeable number, because it can be changed into a prime (70120133) 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, 538 + ... + 11854.

Almost surely, 270120132 is an apocalyptic number.

It is an amenable number.

70120132 is a deficient number, since it is larger than the sum of its proper divisors (52680168).

70120132 is a wasteful number, since it uses less digits than its factorization.

70120132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12870 (or 12868 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 70120132 is about 8373.7764479355. The cubic root of 70120132 is about 412.3641563098.

Adding to 70120132 its reverse (23102107), we get a palindrome (93222239).

The spelling of 70120132 in words is "seventy million, one hundred twenty thousand, one hundred thirty-two".

Divisors: 1 2 4 1549 3098 6196 11317 22634 45268 17530033 35060066 70120132