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47214505 = 513726377
BaseRepresentation
bin1011010000011…
…0111110101001
310021211202010101
42310012332221
544041331010
64403545401
71112213422
oct264067651
9107752111
1047214505
1124718a58
121398b261
139a215a0
1463b0649
15422973a
hex2d06fa9

47214505 has 8 divisors (see below), whose sum is σ = 61015752. Its totient is φ = 34866048.

The previous prime is 47214443. The next prime is 47214511. The reversal of 47214505 is 50541274.

It can be written as a sum of positive squares in 4 ways, for example, as 2752281 + 44462224 = 1659^2 + 6668^2 .

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 47214505 - 211 = 47212457 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363124 + ... + 363253.

It is an arithmetic number, because the mean of its divisors is an integer number (7626969).

Almost surely, 247214505 is an apocalyptic number.

It is an amenable number.

47214505 is a deficient number, since it is larger than the sum of its proper divisors (13801247).

47214505 is a wasteful number, since it uses less digits than its factorization.

47214505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726395.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 47214505 is about 6871.2811760253. The cubic root of 47214505 is about 361.4307899646.

Adding to 47214505 its reverse (50541274), we get a palindrome (97755779).

The spelling of 47214505 in words is "forty-seven million, two hundred fourteen thousand, five hundred five".

Divisors: 1 5 13 65 726377 3631885 9442901 47214505