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54145454 = 2116533769
BaseRepresentation
bin1100111010001…
…1000110101110
310202212212121012
43032203012232
5102330123304
65212305222
71225141316
oct316430656
9122785535
1054145454
1128622310
1216172212
13b2aa23c
147296446
154b4816e
hex33a31ae

54145454 has 16 divisors (see below), whose sum is σ = 88760880. Its totient is φ = 24567360.

The previous prime is 54145439. The next prime is 54145463. The reversal of 54145454 is 45454145.

It is a super-2 number, since 2×541454542 = 5863460377732232, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 54145454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12482 + ... + 16250.

It is an arithmetic number, because the mean of its divisors is an integer number (5547555).

Almost surely, 254145454 is an apocalyptic number.

54145454 is a deficient number, since it is larger than the sum of its proper divisors (34615426).

54145454 is a wasteful number, since it uses less digits than its factorization.

54145454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4435.

The product of its digits is 32000, while the sum is 32.

The square root of 54145454 is about 7358.3594639023. The cubic root of 54145454 is about 378.3153821149.

Adding to 54145454 its reverse (45454145), we get a palindrome (99599599).

The spelling of 54145454 in words is "fifty-four million, one hundred forty-five thousand, four hundred fifty-four".

Divisors: 1 2 11 22 653 1306 3769 7183 7538 14366 41459 82918 2461157 4922314 27072727 54145454