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54631000 = 235354631
BaseRepresentation
bin1101000001100…
…1101001011000
310210210112122101
43100121221120
5102441143000
65230533144
71232233024
oct320315130
9123715571
1054631000
1128924096
12163671b4
13b41a248
147381384
154be1e6a
hex3419a58

54631000 has 32 divisors (see below), whose sum is σ = 127838880. Its totient is φ = 21852000.

The previous prime is 54630997. The next prime is 54631007. The reversal of 54631000 is 13645.

It is a super-2 number, since 2×546310002 = 5969092322000000, which contains 22 as substring.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 26316 + ... + 28315.

It is an arithmetic number, because the mean of its divisors is an integer number (3994965).

Almost surely, 254631000 is an apocalyptic number.

54631000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

54631000 is an abundant number, since it is smaller than the sum of its proper divisors (73207880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54631000 is a wasteful number, since it uses less digits than its factorization.

54631000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54652 (or 54638 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 54631000 is about 7391.2786444566. The cubic root of 54631000 is about 379.4428585166.

Adding to 54631000 its reverse (13645), we get a palindrome (54644645).

The spelling of 54631000 in words is "fifty-four million, six hundred thirty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 54631 109262 218524 273155 437048 546310 1092620 1365775 2185240 2731550 5463100 6828875 10926200 13657750 27315500 54631000