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442108888 = 23136316737
BaseRepresentation
bin11010010110100…
…000101111011000
31010210220110101021
4122112200233120
51401134441023
6111511532224
713645602124
oct3226405730
91123813337
10442108888
11207616a51
1210408a074
1370795cc0
1442a06584
1528c3035d
hex1a5a0bd8

442108888 has 32 divisors (see below), whose sum is σ = 894267360. Its totient is φ = 203696640.

The previous prime is 442108871. The next prime is 442108937. The reversal of 442108888 is 888801244.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 62256 + ... + 68992.

It is an arithmetic number, because the mean of its divisors is an integer number (27945855).

Almost surely, 2442108888 is an apocalyptic number.

It is an amenable number.

442108888 is an abundant number, since it is smaller than the sum of its proper divisors (452158472).

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

442108888 is a wasteful number, since it uses less digits than its factorization.

442108888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7387 (or 7383 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 43.

The square root of 442108888 is about 21026.3855191519. The cubic root of 442108888 is about 761.8037075651.

The spelling of 442108888 in words is "four hundred forty-two million, one hundred eight thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 13 26 52 104 631 1262 2524 5048 6737 8203 13474 16406 26948 32812 53896 65624 87581 175162 350324 700648 4251047 8502094 17004188 34008376 55263611 110527222 221054444 442108888