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54505213 = 717458027
BaseRepresentation
bin1100111111101…
…0111011111101
310210120011002121
43033322323331
5102423131323
65224122541
71231200220
oct317727375
9123504077
1054505213
1128848634
1216306451
13b3a4c09
14734b5b7
154bb9a5d
hex33faefd

54505213 has 8 divisors (see below), whose sum is σ = 65956032. Its totient is φ = 43970496.

The previous prime is 54505189. The next prime is 54505229. The reversal of 54505213 is 31250545.

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 54505213 - 217 = 54374141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54505273) 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, 228895 + ... + 229132.

It is an arithmetic number, because the mean of its divisors is an integer number (8244504).

Almost surely, 254505213 is an apocalyptic number.

It is an amenable number.

54505213 is a deficient number, since it is larger than the sum of its proper divisors (11450819).

54505213 is a wasteful number, since it uses less digits than its factorization.

54505213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458051.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 54505213 is about 7382.7645905853. The cubic root of 54505213 is about 379.1514143578.

Adding to 54505213 its reverse (31250545), we get a palindrome (85755758).

The spelling of 54505213 in words is "fifty-four million, five hundred five thousand, two hundred thirteen".

Divisors: 1 7 17 119 458027 3206189 7786459 54505213