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54688247 = 317124847
BaseRepresentation
bin1101000010011…
…1100111110111
310210220110011122
43100213213313
5103000010442
65232054155
71232561645
oct320474767
9123813148
1054688247
11289630a9
121639435b
13b43a313
147398195
154c03dd2
hex34279f7

54688247 has 8 divisors (see below), whose sum is σ = 57249792. Its totient is φ = 52176600.

The previous prime is 54688223. The next prime is 54688253. The reversal of 54688247 is 74288645.

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 54688247 - 212 = 54684151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54688198 and 54688207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54688747) 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, 10223 + ... + 14624.

It is an arithmetic number, because the mean of its divisors is an integer number (7156224).

Almost surely, 254688247 is an apocalyptic number.

54688247 is a deficient number, since it is larger than the sum of its proper divisors (2561545).

54688247 is a wasteful number, since it uses less digits than its factorization.

54688247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24949.

The product of its digits is 430080, while the sum is 44.

The square root of 54688247 is about 7395.1502351203. The cubic root of 54688247 is about 379.5753497295.

The spelling of 54688247 in words is "fifty-four million, six hundred eighty-eight thousand, two hundred forty-seven".

Divisors: 1 31 71 2201 24847 770257 1764137 54688247