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54120418 = 21117373911
BaseRepresentation
bin1100111001110…
…0111111100010
310202211121020221
43032130333202
5102323323133
65211553254
71225005322
oct316347742
9122747227
1054120418
1128605520
121615b82a
13b29ba21
14728b282
154b40a2d
hex339cfe2

54120418 has 32 divisors (see below), whose sum is σ = 96329088. Its totient is φ = 22521600.

The previous prime is 54120413. The next prime is 54120427. The reversal of 54120418 is 81402145.

It is a junction number, because it is equal to n+sod(n) for n = 54120392 and 54120401.

It is not an unprimeable number, because it can be changed into a prime (54120413) 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, 11883 + ... + 15793.

It is an arithmetic number, because the mean of its divisors is an integer number (3010284).

Almost surely, 254120418 is an apocalyptic number.

54120418 is a deficient number, since it is larger than the sum of its proper divisors (42208670).

54120418 is a wasteful number, since it uses less digits than its factorization.

54120418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 54120418 is about 7356.6580727937. The cubic root of 54120418 is about 378.2570641128.

The spelling of 54120418 in words is "fifty-four million, one hundred twenty thousand, four hundred eighteen".

Divisors: 1 2 11 17 22 34 37 74 187 374 407 629 814 1258 3911 6919 7822 13838 43021 66487 86042 132974 144707 289414 731357 1462714 1591777 2460019 3183554 4920038 27060209 54120418