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28054046 = 2177389127
BaseRepresentation
bin110101100000…
…1001000011110
31221210021220202
41223001020132
524140212141
62441143502
7460312136
oct153011036
957707822
1028054046
1114921469
12948ab92
135a73337
143a23ac6
1526e249b
hex1ac121e

28054046 has 32 divisors (see below), whose sum is σ = 46033920. Its totient is φ = 12773376.

The previous prime is 28054003. The next prime is 28054057. The reversal of 28054046 is 64045082.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 220835 + ... + 220961.

It is an arithmetic number, because the mean of its divisors is an integer number (1438560).

Almost surely, 228054046 is an apocalyptic number.

28054046 is a deficient number, since it is larger than the sum of its proper divisors (17979874).

28054046 is a wasteful number, since it uses less digits than its factorization.

28054046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 28054046 is about 5296.6070271448. The cubic root of 28054046 is about 303.8541471971.

The spelling of 28054046 in words is "twenty-eight million, fifty-four thousand, forty-six".

Divisors: 1 2 17 34 73 89 127 146 178 254 1241 1513 2159 2482 3026 4318 6497 9271 11303 12994 18542 22606 110449 157607 192151 220898 315214 384302 825119 1650238 14027023 28054046