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8472971 = 13651767
BaseRepresentation
bin100000010100…
…100110001011
3120221110201202
4200110212023
54132113341
6501334415
7132006353
oct40244613
916843652
108472971
114867961
122a0740b
1319a87c0
1411a7b63
15b2579b
hex81498b

8472971 has 4 divisors (see below), whose sum is σ = 9124752. Its totient is φ = 7821192.

The previous prime is 8472943. The next prime is 8472977. The reversal of 8472971 is 1792748.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8472971 - 214 = 8456587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8472977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325871 + ... + 325896.

It is an arithmetic number, because the mean of its divisors is an integer number (2281188).

Almost surely, 28472971 is an apocalyptic number.

8472971 is a deficient number, since it is larger than the sum of its proper divisors (651781).

8472971 is a wasteful number, since it uses less digits than its factorization.

8472971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651780.

The product of its digits is 28224, while the sum is 38.

The square root of 8472971 is about 2910.8368212595. The cubic root of 8472971 is about 203.8662056824.

The spelling of 8472971 in words is "eight million, four hundred seventy-two thousand, nine hundred seventy-one".

Divisors: 1 13 651767 8472971