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42486551420 = 22513116216241
BaseRepresentation
bin100111100100011001…
…010101001101111100
311001122221221102210112
4213210121111031330
51144003024121140
631303522125152
73032566504565
oct474431251574
9131587842715
1042486551420
1117022606a15
1282987b07b8
134011283571
1420b091b16c
151189e57c65
hex9e465537c

42486551420 has 24 divisors (see below), whose sum is σ = 89902845648. Its totient is φ = 16864889600.

The previous prime is 42486551417. The next prime is 42486551467. The reversal of 42486551420 is 2415568424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8105501 + ... + 8110740.

It is an arithmetic number, because the mean of its divisors is an integer number (3745951902).

Almost surely, 242486551420 is an apocalyptic number.

It is an amenable number.

42486551420 is an abundant number, since it is smaller than the sum of its proper divisors (47416294228).

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

42486551420 is a wasteful number, since it uses less digits than its factorization.

42486551420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16216381 (or 16216379 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 41.

The spelling of 42486551420 in words is "forty-two billion, four hundred eighty-six million, five hundred fifty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2620 16216241 32432482 64864964 81081205 162162410 324324820 2124327571 4248655142 8497310284 10621637855 21243275710 42486551420