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54971047 = 1719170189
BaseRepresentation
bin1101000110110…
…0101010100111
310211102211002201
43101230222213
5103033033142
65242115331
71235150305
oct321545247
9124384081
1054971047
112903661a
12164abb47
13b508c61
14742d275
154c5cab7
hex346caa7

54971047 has 8 divisors (see below), whose sum is σ = 61268400. Its totient is φ = 49014144.

The previous prime is 54971041. The next prime is 54971051. The reversal of 54971047 is 74017945.

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 54971047 - 23 = 54971039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54970997 and 54971015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54971041) 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, 84772 + ... + 85417.

It is an arithmetic number, because the mean of its divisors is an integer number (7658550).

Almost surely, 254971047 is an apocalyptic number.

54971047 is a deficient number, since it is larger than the sum of its proper divisors (6297353).

54971047 is a wasteful number, since it uses less digits than its factorization.

54971047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170225.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 54971047 is about 7414.2462192727. The cubic root of 54971047 is about 380.2285029192.

The spelling of 54971047 in words is "fifty-four million, nine hundred seventy-one thousand, forty-seven".

Divisors: 1 17 19 323 170189 2893213 3233591 54971047