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52471939 = 1319212437
BaseRepresentation
bin1100100000101…
…0100010000011
310122201211222011
43020022202003
5101413100224
65112353351
71205001262
oct310124203
9118654864
1052471939
1127689a43
12156a5857
13ab425b0
146d7c5d9
154917394
hex320a883

52471939 has 8 divisors (see below), whose sum is σ = 59482640. Its totient is φ = 45886176.

The previous prime is 52471931. The next prime is 52471943. The reversal of 52471939 is 93917425.

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 52471939 - 23 = 52471931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52471931) 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, 105972 + ... + 106465.

It is an arithmetic number, because the mean of its divisors is an integer number (7435330).

Almost surely, 252471939 is an apocalyptic number.

52471939 is a deficient number, since it is larger than the sum of its proper divisors (7010701).

52471939 is a wasteful number, since it uses less digits than its factorization.

52471939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212469.

The product of its digits is 68040, while the sum is 40.

The square root of 52471939 is about 7243.7517213113. The cubic root of 52471939 is about 374.3768946943.

The spelling of 52471939 in words is "fifty-two million, four hundred seventy-one thousand, nine hundred thirty-nine".

Divisors: 1 13 19 247 212437 2761681 4036303 52471939