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52728837 = 375094933
BaseRepresentation
bin1100100100100…
…1010000000101
310200012220100220
43021021100011
5101444310322
65122054553
71210121250
oct311112005
9120186326
1052728837
1127844a57
12157aa459
13ac024c5
147008097
15496855c
hex3249405

52728837 has 16 divisors (see below), whose sum is σ = 80522880. Its totient is φ = 30065472.

The previous prime is 52728833. The next prime is 52728839. The reversal of 52728837 is 73882725.

It is not a de Polignac number, because 52728837 - 22 = 52728833 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52728833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8223 + ... + 13155.

It is an arithmetic number, because the mean of its divisors is an integer number (5032680).

Almost surely, 252728837 is an apocalyptic number.

It is an amenable number.

52728837 is a deficient number, since it is larger than the sum of its proper divisors (27794043).

52728837 is a wasteful number, since it uses less digits than its factorization.

52728837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452.

The product of its digits is 188160, while the sum is 42.

The square root of 52728837 is about 7261.4624560071. The cubic root of 52728837 is about 374.9868724293.

The spelling of 52728837 in words is "fifty-two million, seven hundred twenty-eight thousand, eight hundred thirty-seven".

Divisors: 1 3 7 21 509 1527 3563 4933 10689 14799 34531 103593 2510897 7532691 17576279 52728837