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52120078 = 2191371581
BaseRepresentation
bin1100011011010…
…0101000001110
310122001222022021
43012310220032
5101320320303
65101040354
71202004403
oct306645016
9118058267
1052120078
112746964a
12155560ba
13aa4b3aa
146cca2aa
154897ebd
hex31b4a0e

52120078 has 8 divisors (see below), whose sum is σ = 82294920. Its totient is φ = 24688440.

The previous prime is 52120067. The next prime is 52120109. The reversal of 52120078 is 87002125.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685753 + ... + 685828.

It is an arithmetic number, because the mean of its divisors is an integer number (10286865).

Almost surely, 252120078 is an apocalyptic number.

52120078 is a deficient number, since it is larger than the sum of its proper divisors (30174842).

52120078 is a wasteful number, since it uses less digits than its factorization.

52120078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371602.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 52120078 is about 7219.4236612073. The cubic root of 52120078 is about 373.5381976875.

The spelling of 52120078 in words is "fifty-two million, one hundred twenty thousand, seventy-eight".

Divisors: 1 2 19 38 1371581 2743162 26060039 52120078