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54638071 = 5359101173
BaseRepresentation
bin1101000001101…
…1010111110111
310210210220100021
43100123113313
5102441404241
65231030011
71232262445
oct320332767
9123726307
1054638071
1128929434
121636b307
13b420527
147383b95
154be40d1
hex341b5f7

54638071 has 16 divisors (see below), whose sum is σ = 57503520. Its totient is φ = 51875200.

The previous prime is 54638069. The next prime is 54638081. The reversal of 54638071 is 17083645.

It is a cyclic number.

It is not a de Polignac number, because 54638071 - 21 = 54638069 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 (54638021) 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, 315741 + ... + 315913.

It is an arithmetic number, because the mean of its divisors is an integer number (3593970).

Almost surely, 254638071 is an apocalyptic number.

54638071 is a deficient number, since it is larger than the sum of its proper divisors (2865449).

54638071 is a wasteful number, since it uses less digits than its factorization.

54638071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 54638071 is about 7391.7569629960. The cubic root of 54638071 is about 379.4592284940.

The spelling of 54638071 in words is "fifty-four million, six hundred thirty-eight thousand, seventy-one".

Divisors: 1 53 59 101 173 3127 5353 5959 9169 10207 17473 315827 540971 926069 1030907 54638071