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70053613 = 710007659
BaseRepresentation
bin1000010110011…
…10111011101101
311212211002111021
410023032323231
5120413203423
610541254141
71510305640
oct413167355
9155732437
1070053613
11365a8353
121b564351
131168a056
149437a57
15623b95d
hex42ceeed

70053613 has 4 divisors (see below), whose sum is σ = 80061280. Its totient is φ = 60045948.

The previous prime is 70053601. The next prime is 70053629. The reversal of 70053613 is 31635007.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31635007 = 34579151.

It is a cyclic number.

It is not a de Polignac number, because 70053613 - 221 = 67956461 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 (70053673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5003823 + ... + 5003836.

It is an arithmetic number, because the mean of its divisors is an integer number (20015320).

Almost surely, 270053613 is an apocalyptic number.

It is an amenable number.

70053613 is a deficient number, since it is larger than the sum of its proper divisors (10007667).

70053613 is a wasteful number, since it uses less digits than its factorization.

70053613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007666.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 70053613 is about 8369.8036416633. The cubic root of 70053613 is about 412.2337195442.

The spelling of 70053613 in words is "seventy million, fifty-three thousand, six hundred thirteen".

Divisors: 1 7 10007659 70053613