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52102047 = 319248109
BaseRepresentation
bin1100011011000…
…0001110011111
310122001001120110
43012300032133
5101314231142
65100421103
71201601004
oct306601637
9118031513
1052102047
1127457048
1215547793
13aa4311a
146cc38ab
15489299c
hex31b039f

52102047 has 12 divisors (see below), whose sum is σ = 73319640. Its totient is φ = 32905872.

The previous prime is 52102013. The next prime is 52102049. The reversal of 52102047 is 74020125.

It is not a de Polignac number, because 52102047 - 212 = 52097951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52102049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22972 + ... + 25137.

It is an arithmetic number, because the mean of its divisors is an integer number (6109970).

Almost surely, 252102047 is an apocalyptic number.

52102047 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

52102047 is a deficient number, since it is larger than the sum of its proper divisors (21217593).

52102047 is a wasteful number, since it uses less digits than its factorization.

52102047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48150 (or 48131 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 52102047 is about 7218.1747692890. The cubic root of 52102047 is about 373.4951173984.

The spelling of 52102047 in words is "fifty-two million, one hundred two thousand, forty-seven".

Divisors: 1 3 19 57 361 1083 48109 144327 914071 2742213 17367349 52102047