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548420142 = 231923375653
BaseRepresentation
bin100000101100000…
…011101000101110
31102012221122000010
4200230003220232
52110343421032
6130230314050
716406331354
oct4054035056
91365848003
10548420142
11261629196
121337b8926
138980937a
1452b9b7d4
153322eccc
hex20b03a2e

548420142 has 64 divisors (see below), whose sum is σ = 1237547520. Its totient is φ = 161149824.

The previous prime is 548420129. The next prime is 548420219. The reversal of 548420142 is 241024845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94188 + ... + 99840.

It is an arithmetic number, because the mean of its divisors is an integer number (19336680).

Almost surely, 2548420142 is an apocalyptic number.

548420142 is an abundant number, since it is smaller than the sum of its proper divisors (689127378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

548420142 is a wasteful number, since it uses less digits than its factorization.

548420142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5737.

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 548420142 is about 23418.3718904624. The cubic root of 548420142 is about 818.5360265819.

Adding to 548420142 its reverse (241024845), we get a palindrome (789444987).

The spelling of 548420142 in words is "five hundred forty-eight million, four hundred twenty thousand, one hundred forty-two".

Divisors: 1 2 3 6 19 23 37 38 46 57 69 74 111 114 138 222 437 703 851 874 1311 1406 1702 2109 2553 2622 4218 5106 5653 11306 16169 16959 32338 33918 48507 97014 107407 130019 209161 214814 260038 322221 390057 418322 627483 644442 780114 1254966 2470361 3974059 4810703 4940722 7411083 7948118 9621406 11922177 14432109 14822166 23844354 28864218 91403357 182806714 274210071 548420142