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47438713 = 72968137
BaseRepresentation
bin1011010011110…
…1101101111001
310022021010200101
42310331231321
544121014323
64412435401
71114136200
oct264755571
9108233611
1047438713
1124861453
1213a78b61
139a9c65a
14642c237
154270dad
hex2d3db79

47438713 has 6 divisors (see below), whose sum is σ = 55183866. Its totient is φ = 40661712.

The previous prime is 47438707. The next prime is 47438737. The reversal of 47438713 is 31783474.

It can be written as a sum of positive squares in only one way, i.e., 47155689 + 283024 = 6867^2 + 532^2 .

It is not a de Polignac number, because 47438713 - 213 = 47430521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47438753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 484020 + ... + 484117.

It is an arithmetic number, because the mean of its divisors is an integer number (9197311).

Almost surely, 247438713 is an apocalyptic number.

It is an amenable number.

47438713 is a deficient number, since it is larger than the sum of its proper divisors (7745153).

47438713 is an equidigital number, since it uses as much as digits as its factorization.

47438713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968151 (or 968144 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 47438713 is about 6887.5767146363. The cubic root of 47438713 is about 362.0019967738.

It can be divided in two parts, 4743 and 8713, that added together give a square (13456 = 1162).

The spelling of 47438713 in words is "forty-seven million, four hundred thirty-eight thousand, seven hundred thirteen".

Divisors: 1 7 49 968137 6776959 47438713