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52248547 = 132319973
BaseRepresentation
bin1100011101001…
…1111111100011
310122022111112101
43013103333203
5101333423142
65103511231
71203051061
oct307237743
9118274471
1052248547
112754711a
12155b8517
13aa94a00
146d21031
1548c10b7
hex31d3fe3

52248547 has 12 divisors (see below), whose sum is σ = 58407744. Its totient is φ = 46668960.

The previous prime is 52248541. The next prime is 52248557. The reversal of 52248547 is 74584225.

It is a happy number.

It is not a de Polignac number, because 52248547 - 27 = 52248419 is a prime.

It is a super-2 number, since 2×522485472 = 5459821327222418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52248541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253 + ... + 10225.

It is an arithmetic number, because the mean of its divisors is an integer number (4867312).

Almost surely, 252248547 is an apocalyptic number.

52248547 is a deficient number, since it is larger than the sum of its proper divisors (6159197).

52248547 is a wasteful number, since it uses less digits than its factorization.

52248547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10030 (or 10017 counting only the distinct ones).

The product of its digits is 89600, while the sum is 37.

The square root of 52248547 is about 7228.3156405901. The cubic root of 52248547 is about 373.8448530521.

The spelling of 52248547 in words is "fifty-two million, two hundred forty-eight thousand, five hundred forty-seven".

Divisors: 1 13 31 169 403 5239 9973 129649 309163 1685437 4019119 52248547