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70122686 = 2213116453
BaseRepresentation
bin1000010110111…
…11110010111110
311212221121020112
410023133302332
5120422411221
610542550022
71511014214
oct413376276
9155847215
1070122686
1136645237
121b598312
13116b261a
149454cb4
15625215b
hex42dfcbe

70122686 has 8 divisors (see below), whose sum is σ = 105239784. Its totient is φ = 35042760.

The previous prime is 70122683. The next prime is 70122697. The reversal of 70122686 is 68622107.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70122683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3965 + ... + 12488.

It is an arithmetic number, because the mean of its divisors is an integer number (13154973).

Almost surely, 270122686 is an apocalyptic number.

70122686 is a deficient number, since it is larger than the sum of its proper divisors (35117098).

70122686 is a wasteful number, since it uses less digits than its factorization.

70122686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18586.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 70122686 is about 8373.9289464385. The cubic root of 70122686 is about 412.3691627906.

The spelling of 70122686 in words is "seventy million, one hundred twenty-two thousand, six hundred eighty-six".

Divisors: 1 2 2131 4262 16453 32906 35061343 70122686