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52728441 = 3173727943
BaseRepresentation
bin1100100100100…
…1001001111001
310200012212211020
43021021021321
5101444302231
65122053053
71210120143
oct311111171
9120185736
1052728441
1127844727
12157aa189
13ac0227c
147007c93
154968396
hex3249279

52728441 has 16 divisors (see below), whose sum is σ = 76454784. Its totient is φ = 32189184.

The previous prime is 52728391. The next prime is 52728451. The reversal of 52728441 is 14482725.

It is not a de Polignac number, because 52728441 - 214 = 52712057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52728451) 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, 12085 + ... + 15858.

It is an arithmetic number, because the mean of its divisors is an integer number (4778424).

Almost surely, 252728441 is an apocalyptic number.

52728441 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

52728441 is a deficient number, since it is larger than the sum of its proper divisors (23726343).

52728441 is a wasteful number, since it uses less digits than its factorization.

52728441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28000.

The product of its digits is 17920, while the sum is 33.

The square root of 52728441 is about 7261.4351887213. The cubic root of 52728441 is about 374.9859336946.

The spelling of 52728441 in words is "fifty-two million, seven hundred twenty-eight thousand, four hundred forty-one".

Divisors: 1 3 17 37 51 111 629 1887 27943 83829 475031 1033891 1425093 3101673 17576147 52728441