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47304872 = 235913109
BaseRepresentation
bin1011010001110…
…1000010101000
310022000100002022
42310131002220
544102223442
64405524012
71113041036
oct264350250
9108010068
1047304872
112477a93a
1213a13608
139a53764
1463d5556
1542463d2
hex2d1d0a8

47304872 has 8 divisors (see below), whose sum is σ = 88696650. Its totient is φ = 23652432.

The previous prime is 47304871. The next prime is 47304883. The reversal of 47304872 is 27840374.

It can be written as a sum of positive squares in only one way, i.e., 33570436 + 13734436 = 5794^2 + 3706^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (47304871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2956547 + ... + 2956562.

Almost surely, 247304872 is an apocalyptic number.

It is an amenable number.

47304872 is a deficient number, since it is larger than the sum of its proper divisors (41391778).

47304872 is a wasteful number, since it uses less digits than its factorization.

47304872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5913115 (or 5913111 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 47304872 is about 6877.8537349961. The cubic root of 47304872 is about 361.6612318645.

The spelling of 47304872 in words is "forty-seven million, three hundred four thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 5913109 11826218 23652436 47304872