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54100138 = 229932761
BaseRepresentation
bin1100111001100…
…0000010101010
310202210120102211
43032120002222
5102322201023
65211315334
71224562231
oct316300252
9122716384
1054100138
11285a1264
121614bb4a
13b292721
147283b18
154b39a0d
hex33980aa

54100138 has 8 divisors (see below), whose sum is σ = 83948580. Its totient is φ = 26117280.

The previous prime is 54100133. The next prime is 54100139. The reversal of 54100138 is 83100145.

It can be written as a sum of positive squares in 2 ways, for example, as 50651689 + 3448449 = 7117^2 + 1857^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (54100133) 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 3 ways as a sum of consecutive naturals, for example, 466323 + ... + 466438.

Almost surely, 254100138 is an apocalyptic number.

54100138 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

54100138 is a deficient number, since it is larger than the sum of its proper divisors (29848442).

54100138 is a wasteful number, since it uses less digits than its factorization.

54100138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932792.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 54100138 is about 7355.2796003959. The cubic root of 54100138 is about 378.2098113882.

The spelling of 54100138 in words is "fifty-four million, one hundred thousand, one hundred thirty-eight".

Divisors: 1 2 29 58 932761 1865522 27050069 54100138