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542220817220 = 225231178740907
BaseRepresentation
bin1111110001111101110…
…00010001001101000100
31220211120022010110020122
413320332320101031010
532340432012122340
61053032013521112
754113510621045
oct7707670211504
91824508113218
10542220817220
11199a55574375
12891047a3198
133c192340064
141c35a72a8cc
15e187599db5
hex7e3ee11344

542220817220 has 24 divisors (see below), whose sum is σ = 1188170835264. Its totient is φ = 207458399456.

The previous prime is 542220817219. The next prime is 542220817321. The reversal of 542220817220 is 22718022245.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589369994 + ... + 589370913.

It is an arithmetic number, because the mean of its divisors is an integer number (49507118136).

Almost surely, 2542220817220 is an apocalyptic number.

It is an amenable number.

542220817220 is an abundant number, since it is smaller than the sum of its proper divisors (645950018044).

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

542220817220 is a wasteful number, since it uses less digits than its factorization.

542220817220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178740939 (or 1178740937 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 35.

Adding to 542220817220 its reverse (22718022245), we get a palindrome (564938839465).

The spelling of 542220817220 in words is "five hundred forty-two billion, two hundred twenty million, eight hundred seventeen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 1178740907 2357481814 4714963628 5893704535 11787409070 23574818140 27111040861 54222081722 108444163444 135555204305 271110408610 542220817220