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54166145 = 5113131769
BaseRepresentation
bin1100111010100…
…0001010000001
310202220220222112
43032220022001
5102331304040
65212545105
71225255535
oct316501201
9122826875
1054166145
1128636910
1216182195
13b2b6797
14729dbc5
154b4e365
hex33a8281

54166145 has 16 divisors (see below), whose sum is σ = 73198080. Its totient is φ = 38121600.

The previous prime is 54166141. The next prime is 54166157.

54166145 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54166145 - 22 = 54166141 is a prime.

It is a super-2 number, since 2×541661452 = 5867942528322050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54166141) 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, 14180 + ... + 17589.

It is an arithmetic number, because the mean of its divisors is an integer number (4574880).

Almost surely, 254166145 is an apocalyptic number.

54166145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54166145 is a deficient number, since it is larger than the sum of its proper divisors (19031935).

54166145 is a wasteful number, since it uses less digits than its factorization.

54166145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31816.

The product of its digits is 14400, while the sum is 32.

The square root of 54166145 is about 7359.7652815834. The cubic root of 54166145 is about 378.3635654564.

The spelling of 54166145 in words is "fifty-four million, one hundred sixty-six thousand, one hundred forty-five".

Divisors: 1 5 11 31 55 155 341 1705 31769 158845 349459 984839 1747295 4924195 10833229 54166145