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242208389020 = 225134312161417
BaseRepresentation
bin1110000110010010111…
…1101011011110011100
3212011011220211000012211
43201210233223132130
512432020321422040
6303134034210204
723333102223523
oct3414457533634
9764156730184
10242208389020
11937a1359634
123ab37123964
1319abca7c5b0
14ba19ab14ba
156478c838ea
hex3864beb79c

242208389020 has 48 divisors (see below), whose sum is σ = 549034754688. Its totient is φ = 89223252480.

The previous prime is 242208388991. The next prime is 242208389051. The reversal of 242208389020 is 20983802242.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 968649 + ... + 1192768.

It is an arithmetic number, because the mean of its divisors is an integer number (11438224056).

Almost surely, 2242208389020 is an apocalyptic number.

242208389020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242208389020 is an abundant number, since it is smaller than the sum of its proper divisors (306826365668).

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

242208389020 is a wasteful number, since it uses less digits than its factorization.

242208389020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161870 (or 2161868 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 242208389020 in words is "two hundred forty-two billion, two hundred eight million, three hundred eighty-nine thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 431 862 1724 2155 4310 5603 8620 11206 22412 28015 56030 112060 2161417 4322834 8645668 10807085 21614170 28098421 43228340 56196842 112393684 140492105 280984210 561968420 931570727 1863141454 3726282908 4657853635 9315707270 12110419451 18631414540 24220838902 48441677804 60552097255 121104194510 242208389020