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47134731 = 373316781
BaseRepresentation
bin1011001111001…
…1100000001011
310021200200200210
42303303200023
544031302411
64402132203
71111432020
oct263634013
9107620623
1047134731
1124674026
1213951063
1399c4197
14638d547
154210ca6
hex2cf380b

47134731 has 16 divisors (see below), whose sum is σ = 72051968. Its totient is φ = 26848800.

The previous prime is 47134723. The next prime is 47134733. The reversal of 47134731 is 13743174.

47134731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47134731 - 23 = 47134723 is a prime.

It is a super-2 number, since 2×471347312 = 4443365732884722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47134733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3561 + ... + 10341.

It is an arithmetic number, because the mean of its divisors is an integer number (4503248).

Almost surely, 247134731 is an apocalyptic number.

47134731 is a deficient number, since it is larger than the sum of its proper divisors (24917237).

47134731 is a wasteful number, since it uses less digits than its factorization.

47134731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122.

The product of its digits is 7056, while the sum is 30.

The square root of 47134731 is about 6865.4738365243. The cubic root of 47134731 is about 361.2271164410.

The spelling of 47134731 in words is "forty-seven million, one hundred thirty-four thousand, seven hundred thirty-one".

Divisors: 1 3 7 21 331 993 2317 6781 6951 20343 47467 142401 2244511 6733533 15711577 47134731