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47239044 = 2233936587
BaseRepresentation
bin1011010000110…
…0111110000100
310021212222210020
42310030332010
544043122134
64404255140
71112345106
oct264147604
9107788706
1047239044
1124735436
12139a14b0
139a2c7c8
1463b9576
154231b49
hex2d0cf84

47239044 has 12 divisors (see below), whose sum is σ = 110224464. Its totient is φ = 15746344.

The previous prime is 47239043. The next prime is 47239051. The reversal of 47239044 is 44093274.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 47238996 and 47239014.

It is not an unprimeable number, because it can be changed into a prime (47239043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1968282 + ... + 1968305.

It is an arithmetic number, because the mean of its divisors is an integer number (9185372).

Almost surely, 247239044 is an apocalyptic number.

It is an amenable number.

47239044 is an abundant number, since it is smaller than the sum of its proper divisors (62985420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47239044 is a wasteful number, since it uses less digits than its factorization.

47239044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936594 (or 3936592 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 47239044 is about 6873.0665644965. The cubic root of 47239044 is about 361.4933951185.

The spelling of 47239044 in words is "forty-seven million, two hundred thirty-nine thousand, forty-four".

Divisors: 1 2 3 4 6 12 3936587 7873174 11809761 15746348 23619522 47239044