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52064149 = 173897873
BaseRepresentation
bin1100011010011…
…0111110010101
310121222010120211
43012212332111
5101312023044
65055525421
71201352344
oct306467625
9117863524
1052064149
1127430625
1215529871
13aa2bab7
146cb3b5b
154886634
hex31a6f95

52064149 has 8 divisors (see below), whose sum is σ = 55275480. Its totient is φ = 48869376.

The previous prime is 52064113. The next prime is 52064153. The reversal of 52064149 is 94146025.

It can be written as a sum of positive squares in 4 ways, for example, as 483025 + 51581124 = 695^2 + 7182^2 .

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 52064149 - 215 = 52031381 is a prime.

It is a super-2 number, since 2×520641492 = 5421351222188402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52064149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52064449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2677 + ... + 10549.

It is an arithmetic number, because the mean of its divisors is an integer number (6909435).

Almost surely, 252064149 is an apocalyptic number.

It is an amenable number.

52064149 is a deficient number, since it is larger than the sum of its proper divisors (3211331).

52064149 is a wasteful number, since it uses less digits than its factorization.

52064149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8279.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 52064149 is about 7215.5491128534. The cubic root of 52064149 is about 373.4045377756.

The spelling of 52064149 in words is "fifty-two million, sixty-four thousand, one hundred forty-nine".

Divisors: 1 17 389 6613 7873 133841 3062597 52064149