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42424988220 = 2233578564793
BaseRepresentation
bin100111100000101110…
…011111001000111100
311001111200002200222000
4213200232133020330
51143341244110340
631253442422300
73031221310206
oct474056371074
9131450080860
1042424988220
1116aa088863a
128280061990
1340015a9c34
1420a6693776
151184846d30
hex9e0b9f23c

42424988220 has 48 divisors (see below), whose sum is σ = 131988853920. Its totient is φ = 11313330048.

The previous prime is 42424988201. The next prime is 42424988233. The reversal of 42424988220 is 2288942424.

42424988220 is a `hidden beast` number, since 42 + 42 + 498 + 82 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 15 ways as a sum of consecutive naturals, for example, 39281857 + ... + 39282936.

It is an arithmetic number, because the mean of its divisors is an integer number (2749767790).

Almost surely, 242424988220 is an apocalyptic number.

It is an amenable number.

42424988220 is an abundant number, since it is smaller than the sum of its proper divisors (89563865700).

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

42424988220 is a wasteful number, since it uses less digits than its factorization.

42424988220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78564811 (or 78564803 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The spelling of 42424988220 in words is "forty-two billion, four hundred twenty-four million, nine hundred eighty-eight thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 78564793 157129586 235694379 314259172 392823965 471388758 707083137 785647930 942777516 1178471895 1414166274 1571295860 2121249411 2356943790 2828332548 3535415685 4242498822 4713887580 7070831370 8484997644 10606247055 14141662740 21212494110 42424988220