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54631057 = 134202389
BaseRepresentation
bin1101000001100…
…1101010010001
310210210112201111
43100121222101
5102441143212
65230533321
71232233135
oct320315221
9123715644
1054631057
1128924138
1216367241
13b41a290
1473813c5
154be1ea7
hex3419a91

54631057 has 4 divisors (see below), whose sum is σ = 58833460. Its totient is φ = 50428656.

The previous prime is 54631039. The next prime is 54631067. The reversal of 54631057 is 75013645.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22810176 + 31820881 = 4776^2 + 5641^2 .

It is a cyclic number.

It is not a de Polignac number, because 54631057 - 215 = 54598289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54631007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2101182 + ... + 2101207.

It is an arithmetic number, because the mean of its divisors is an integer number (14708365).

Almost surely, 254631057 is an apocalyptic number.

It is an amenable number.

54631057 is a deficient number, since it is larger than the sum of its proper divisors (4202403).

54631057 is a wasteful number, since it uses less digits than its factorization.

54631057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202402.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 54631057 is about 7391.2825003513. The cubic root of 54631057 is about 379.4429904822.

The spelling of 54631057 in words is "fifty-four million, six hundred thirty-one thousand, fifty-seven".

Divisors: 1 13 4202389 54631057