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70142382 = 23310312611
BaseRepresentation
bin1000010111001…
…00100110101110
311212222121021000
410023210212232
5120424024012
610543221130
71511125512
oct413444656
9155877230
1070142382
1136659012
121b5a77a6
13116bb58b
14945c142
156257ddc
hex42e49ae

70142382 has 32 divisors (see below), whose sum is σ = 157397760. Its totient is φ = 23151960.

The previous prime is 70142381. The next prime is 70142383. The reversal of 70142382 is 28324107.

It is an interprime number because it is at equal distance from previous prime (70142381) and next prime (70142383).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70142381) 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 15 ways as a sum of consecutive naturals, for example, 744 + ... + 11867.

It is an arithmetic number, because the mean of its divisors is an integer number (4918680).

Almost surely, 270142382 is an apocalyptic number.

70142382 is an abundant number, since it is smaller than the sum of its proper divisors (87255378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70142382 is a wasteful number, since it uses less digits than its factorization.

70142382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12725 (or 12719 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 70142382 is about 8375.1048948655. The cubic root of 70142382 is about 412.4077678088.

Adding to 70142382 its reverse (28324107), we get a palindrome (98466489).

The spelling of 70142382 in words is "seventy million, one hundred forty-two thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 18 27 54 103 206 309 618 927 1854 2781 5562 12611 25222 37833 75666 113499 226998 340497 680994 1298933 2597866 3896799 7793598 11690397 23380794 35071191 70142382