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542241212120 = 23517337822291
BaseRepresentation
bin1111110010000000001…
…10000100011011011000
31220211121201111121210022
413321000012010123120
532341002222241440
61053034023010012
754114146153306
oct7710006043330
91824551447708
10542241212120
11199a66034363
128910b599908
133c19663114a
141c35d319276
15e189277cb5
hex7e401846d8

542241212120 has 32 divisors (see below), whose sum is σ = 1220746889520. Its totient is φ = 216771300480.

The previous prime is 542241212119. The next prime is 542241212129. The reversal of 542241212120 is 21212142245.

It is a self number, because there is not a number n which added to its sum of digits gives 542241212120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542241212129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3841826 + ... + 3980465.

Almost surely, 2542241212120 is an apocalyptic number.

It is an amenable number.

542241212120 is an abundant number, since it is smaller than the sum of its proper divisors (678505677400).

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

542241212120 is a wasteful number, since it uses less digits than its factorization.

542241212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7824035 (or 7824031 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 542241212120 its reverse (21212142245), we get a palindrome (563453354365).

The spelling of 542241212120 in words is "five hundred forty-two billion, two hundred forty-one million, two hundred twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1733 3466 6932 8665 13864 17330 34660 69320 7822291 15644582 31289164 39111455 62578328 78222910 156445820 312891640 13556030303 27112060606 54224121212 67780151515 108448242424 135560303030 271120606060 542241212120