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54638485 = 5118311969
BaseRepresentation
bin1101000001101…
…1011110010101
310210210220220121
43100123132111
5102441412420
65231031541
71232263606
oct320333625
9123726817
1054638485
1128929780
121636b5b1
13b420785
147383dad
154be42aa
hex341b795

54638485 has 16 divisors (see below), whose sum is σ = 72394560. Its totient is φ = 39255040.

The previous prime is 54638453. The next prime is 54638489. The reversal of 54638485 is 58483645.

54638485 = 7702 + 7712 + ... + 8522.

It is not a de Polignac number, because 54638485 - 25 = 54638453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54638489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1420 + ... + 10549.

It is an arithmetic number, because the mean of its divisors is an integer number (4524660).

Almost surely, 254638485 is an apocalyptic number.

54638485 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54638485 is a deficient number, since it is larger than the sum of its proper divisors (17756075).

54638485 is a wasteful number, since it uses less digits than its factorization.

54638485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12068.

The product of its digits is 460800, while the sum is 43.

The square root of 54638485 is about 7391.7849671104. The cubic root of 54638485 is about 379.4601868960.

The spelling of 54638485 in words is "fifty-four million, six hundred thirty-eight thousand, four hundred eighty-five".

Divisors: 1 5 11 55 83 415 913 4565 11969 59845 131659 658295 993427 4967135 10927697 54638485