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47006861 = 1113132621
BaseRepresentation
bin1011001101010…
…0010010001101
310021110012021212
42303110102031
544013204421
64355304205
71110360146
oct263242215
9107405255
1047006861
1124596a50
12138ab065
13997ac15
146358acd
1541d7e5b
hex2cd448d

47006861 has 8 divisors (see below), whose sum is σ = 51673248. Its totient is φ = 42406000.

The previous prime is 47006857. The next prime is 47006959. The reversal of 47006861 is 16860074.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47006861 - 22 = 47006857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47006821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14870 + ... + 17751.

It is an arithmetic number, because the mean of its divisors is an integer number (6459156).

Almost surely, 247006861 is an apocalyptic number.

It is an amenable number.

47006861 is a deficient number, since it is larger than the sum of its proper divisors (4666387).

47006861 is a wasteful number, since it uses less digits than its factorization.

47006861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32763.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 47006861 is about 6856.1549719941. The cubic root of 47006861 is about 360.9001675536.

The spelling of 47006861 in words is "forty-seven million, six thousand, eight hundred sixty-one".

Divisors: 1 11 131 1441 32621 358831 4273351 47006861