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52886649 = 317628883
BaseRepresentation
bin1100100110111…
…1110001111001
310200111220211210
43021233301321
5102014333044
65125313333
71211346324
oct311576171
9120456753
1052886649
1127942582
1215865849
13ac5929a
1470497bb
15499a1b9
hex326fc79

52886649 has 4 divisors (see below), whose sum is σ = 70515536. Its totient is φ = 35257764.

The previous prime is 52886641. The next prime is 52886657. The reversal of 52886649 is 94668825.

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.

It is an interprime number because it is at equal distance from previous prime (52886641) and next prime (52886657).

It is not a de Polignac number, because 52886649 - 23 = 52886641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52886598 and 52886607.

It is not an unprimeable number, because it can be changed into a prime (52886641) 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, 8814439 + ... + 8814444.

It is an arithmetic number, because the mean of its divisors is an integer number (17628884).

Almost surely, 252886649 is an apocalyptic number.

It is an amenable number.

52886649 is a deficient number, since it is larger than the sum of its proper divisors (17628887).

52886649 is a wasteful number, since it uses less digits than its factorization.

52886649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17628886.

The product of its digits is 829440, while the sum is 48.

The square root of 52886649 is about 7272.3207437516. The cubic root of 52886649 is about 375.3605989158.

It can be divided in two parts, 52886 and 649, that added together give a palindrome (53535).

The spelling of 52886649 in words is "fifty-two million, eight hundred eighty-six thousand, six hundred forty-nine".

Divisors: 1 3 17628883 52886649