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38328620 = 22511174221
BaseRepresentation
bin1001001000110…
…1100100101100
32200010021222112
42102031210230
534303003440
63445303152
7643534151
oct222154454
980107875
1038328620
111a6a9950
1210a04ab8
137c2cb75
14513a228
153571965
hex248d92c

38328620 has 24 divisors (see below), whose sum is σ = 87807888. Its totient is φ = 13937600.

The previous prime is 38328613. The next prime is 38328637. The reversal of 38328620 is 2682383.

It is a happy number.

It is a super-2 number, since 2×383286202 = 2938166222208800, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 86891 + ... + 87330.

It is an arithmetic number, because the mean of its divisors is an integer number (3658662).

Almost surely, 238328620 is an apocalyptic number.

It is an amenable number.

38328620 is an abundant number, since it is smaller than the sum of its proper divisors (49479268).

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

38328620 is a wasteful number, since it uses less digits than its factorization.

38328620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174241 (or 174239 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 38328620 is about 6191.0112259630. The cubic root of 38328620 is about 337.1638940171.

The spelling of 38328620 in words is "thirty-eight million, three hundred twenty-eight thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 174221 348442 696884 871105 1742210 1916431 3484420 3832862 7665724 9582155 19164310 38328620