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70315141 = 135408857
BaseRepresentation
bin1000011000011…
…10110010000101
311220022101020111
410030032302011
5121000041031
610551033021
71512445261
oct414166205
9156271214
1070315141
1136766896
121b66b771
131174c0c0
1494a50a1
15628e1b1
hex430ec85

70315141 has 4 divisors (see below), whose sum is σ = 75724012. Its totient is φ = 64906272.

The previous prime is 70315121. The next prime is 70315177. The reversal of 70315141 is 14151307.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30360100 + 39955041 = 5510^2 + 6321^2 .

It is a cyclic number.

It is not a de Polignac number, because 70315141 - 25 = 70315109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70315121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2704416 + ... + 2704441.

It is an arithmetic number, because the mean of its divisors is an integer number (18931003).

Almost surely, 270315141 is an apocalyptic number.

It is an amenable number.

70315141 is a deficient number, since it is larger than the sum of its proper divisors (5408871).

70315141 is a wasteful number, since it uses less digits than its factorization.

70315141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5408870.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 70315141 is about 8385.4123929596. The cubic root of 70315141 is about 412.7460736856.

Adding to 70315141 its reverse (14151307), we get a palindrome (84466448).

The spelling of 70315141 in words is "seventy million, three hundred fifteen thousand, one hundred forty-one".

Divisors: 1 13 5408857 70315141