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542405146 = 210919912503
BaseRepresentation
bin100000010101000…
…111001000011010
31101210122000222111
4200111013020122
52102323431041
6125453342534
716304240053
oct4025071032
91353560874
10542405146
112591a0018
12131797a4a
13884b15ba
145207372a
1532942981
hex2054721a

542405146 has 16 divisors (see below), whose sum is σ = 825264000. Its totient is φ = 267342768.

The previous prime is 542405131. The next prime is 542405167. The reversal of 542405146 is 641504245.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 37131 + ... + 49633.

It is an arithmetic number, because the mean of its divisors is an integer number (51579000).

Almost surely, 2542405146 is an apocalyptic number.

542405146 is a deficient number, since it is larger than the sum of its proper divisors (282858854).

542405146 is a wasteful number, since it uses less digits than its factorization.

542405146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12813.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 542405146 is about 23289.5930836071. The cubic root of 542405146 is about 815.5324890324.

Subtracting 542405146 from its reverse (641504245), we obtain a palindrome (99099099).

The spelling of 542405146 in words is "five hundred forty-two million, four hundred five thousand, one hundred forty-six".

Divisors: 1 2 109 199 218 398 12503 21691 25006 43382 1362827 2488097 2725654 4976194 271202573 542405146