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54100145 = 5111019739
BaseRepresentation
bin1100111001100…
…0000010110001
310202210120110002
43032120002301
5102322201040
65211315345
71224562241
oct316300261
9122716402
1054100145
11285a1270
121614bb55
13b292728
147283b21
154b39a15
hex33980b1

54100145 has 16 divisors (see below), whose sum is σ = 71530560. Its totient is φ = 38952000.

The previous prime is 54100141. The next prime is 54100153.

54100145 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54100145 - 22 = 54100141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54100141) 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 15 ways as a sum of consecutive naturals, for example, 686 + ... + 10424.

It is an arithmetic number, because the mean of its divisors is an integer number (4470660).

Almost surely, 254100145 is an apocalyptic number.

54100145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54100145 is a deficient number, since it is larger than the sum of its proper divisors (17430415).

54100145 is a wasteful number, since it uses less digits than its factorization.

54100145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9856.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 54100145 is about 7355.2800762445. The cubic root of 54100145 is about 378.2098277003.

It can be divided in two parts, 54100 and 145, that added together give a palindrome (54245).

The spelling of 54100145 in words is "fifty-four million, one hundred thousand, one hundred forty-five".

Divisors: 1 5 11 55 101 505 1111 5555 9739 48695 107129 535645 983639 4918195 10820029 54100145