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52812047 = 1714512141
BaseRepresentation
bin1100100101110…
…1100100001111
310200101010111202
43021131210033
5102004441142
65123540115
71210615661
oct311354417
9120333452
1052812047
11278a1522
121582a63b
13ac31342
14702a531
154983032
hex325d90f

52812047 has 8 divisors (see below), whose sum is σ = 55983312. Its totient is φ = 49648000.

The previous prime is 52812029. The next prime is 52812049. The reversal of 52812047 is 74021825.

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 52812047 - 28 = 52811791 is a prime.

It is a super-2 number, since 2×528120472 = 5578224616660418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52812049) 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, 23597 + ... + 25737.

It is an arithmetic number, because the mean of its divisors is an integer number (6997914).

Almost surely, 252812047 is an apocalyptic number.

52812047 is a deficient number, since it is larger than the sum of its proper divisors (3171265).

52812047 is a wasteful number, since it uses less digits than its factorization.

52812047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 52812047 is about 7267.1897594600. The cubic root of 52812047 is about 375.1840210893.

The spelling of 52812047 in words is "fifty-two million, eight hundred twelve thousand, forty-seven".

Divisors: 1 17 1451 2141 24667 36397 3106591 52812047