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42802218 = 23223103387
BaseRepresentation
bin1010001101000…
…1110000101010
32222112120121100
42203101300222
541424132333
64125222230
71026545544
oct243216052
988476540
1042802218
1122184a38
1212401976
138b38174
145982694
153b57213
hex28d1c2a

42802218 has 24 divisors (see below), whose sum is σ = 96771168. Its totient is φ = 13646952.

The previous prime is 42802183. The next prime is 42802219. The reversal of 42802218 is 81220824.

It is a junction number, because it is equal to n+sod(n) for n = 42802191 and 42802200.

It is not an unprimeable number, because it can be changed into a prime (42802219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51280 + ... + 52107.

It is an arithmetic number, because the mean of its divisors is an integer number (4032132).

Almost surely, 242802218 is an apocalyptic number.

42802218 is an abundant number, since it is smaller than the sum of its proper divisors (53968950).

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

42802218 is a wasteful number, since it uses less digits than its factorization.

42802218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103418 (or 103415 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 42802218 is about 6542.3404069186. The cubic root of 42802218 is about 349.8018415719.

The spelling of 42802218 in words is "forty-two million, eight hundred two thousand, two hundred eighteen".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 414 103387 206774 310161 620322 930483 1860966 2377901 4755802 7133703 14267406 21401109 42802218