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70893613 = 723440333
BaseRepresentation
bin1000011100111…
…00000000101101
311221101202202101
410032130000231
5121122043423
611011255101
71520404630
oct416340055
9157352671
1070893613
113702146a
121b8aa491
13118c24ab
1495b5c17
1563557ad
hex439c02d

70893613 has 8 divisors (see below), whose sum is σ = 84544128. Its totient is φ = 58123824.

The previous prime is 70893607. The next prime is 70893629. The reversal of 70893613 is 31639807.

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

It is a cyclic number.

It is not a de Polignac number, because 70893613 - 213 = 70885421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70893643) 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 7 ways as a sum of consecutive naturals, for example, 220006 + ... + 220327.

It is an arithmetic number, because the mean of its divisors is an integer number (10568016).

Almost surely, 270893613 is an apocalyptic number.

It is an amenable number.

70893613 is a deficient number, since it is larger than the sum of its proper divisors (13650515).

70893613 is a wasteful number, since it uses less digits than its factorization.

70893613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440363.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 70893613 is about 8419.8344995611. The cubic root of 70893613 is about 413.8748503450.

The spelling of 70893613 in words is "seventy million, eight hundred ninety-three thousand, six hundred thirteen".

Divisors: 1 7 23 161 440333 3082331 10127659 70893613