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47013505 = 5711196427
BaseRepresentation
bin1011001101010…
…1111010000001
310021110112101221
42303111322001
544013413010
64355355041
71110415420
oct263257201
9107415357
1047013505
11245a0a40
12138b2a81
139980c56
14635b2b7
1541d9dda
hex2cd5e81

47013505 has 32 divisors (see below), whose sum is σ = 74050560. Its totient is φ = 27760320.

The previous prime is 47013503. The next prime is 47013521. The reversal of 47013505 is 50531074.

47013505 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 47013505 - 21 = 47013503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47013505.

It is not an unprimeable number, because it can be changed into a prime (47013503) 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 31 ways as a sum of consecutive naturals, for example, 4102 + ... + 10528.

It is an arithmetic number, because the mean of its divisors is an integer number (2314080).

Almost surely, 247013505 is an apocalyptic number.

It is an amenable number.

47013505 is a deficient number, since it is larger than the sum of its proper divisors (27037055).

47013505 is a wasteful number, since it uses less digits than its factorization.

47013505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6469.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 47013505 is about 6856.6394830121. The cubic root of 47013505 is about 360.9171700911.

Adding to 47013505 its reverse (50531074), we get a palindrome (97544579).

The spelling of 47013505 in words is "forty-seven million, thirteen thousand, five hundred five".

Divisors: 1 5 7 11 19 35 55 77 95 133 209 385 665 1045 1463 6427 7315 32135 44989 70697 122113 224945 353485 494879 610565 854791 1343243 2474395 4273955 6716215 9402701 47013505