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42143102020 = 22543227321559
BaseRepresentation
bin100111001111111011…
…001011010001000100
311000210000200101210101
4213033323023101010
51142302113231040
631205452533444
73021226312435
oct471773132104
9130700611711
1042143102020
1116966756338
128201781284
133c88081b76
14207b07748c
151169c1509a
hex9cfecb444

42143102020 has 48 divisors (see below), whose sum is σ = 90602709120. Its totient is φ = 16457204736.

The previous prime is 42143101997. The next prime is 42143102021. The reversal of 42143102020 is 2020134124.

It is not an unprimeable number, because it can be changed into a prime (42143102021) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1944001 + ... + 1965559.

It is an arithmetic number, because the mean of its divisors is an integer number (1887556440).

Almost surely, 242143102020 is an apocalyptic number.

It is an amenable number.

42143102020 is an abundant number, since it is smaller than the sum of its proper divisors (48459607100).

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

42143102020 is a wasteful number, since it uses less digits than its factorization.

42143102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23884 (or 23882 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 42143102020 its reverse (2020134124), we get a palindrome (44163236144).

The spelling of 42143102020 in words is "forty-two billion, one hundred forty-three million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 2273 4546 9092 11365 21559 22730 43118 45460 86236 97739 107795 195478 215590 390956 431180 488695 927037 977390 1854074 1954780 3708148 4635185 9270370 18540740 49003607 98007214 196014428 245018035 490036070 980072140 2107155101 4214310202 8428620404 10535775505 21071551010 42143102020