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38655380 = 2253752237
BaseRepresentation
bin1001001101110…
…1010110010100
32200201220012202
42103131112110
534343433010
63500304032
7646364621
oct223352624
980656182
1038655380
111a9023a5
1210b42018
13801580a
1451c3348
1535d86a5
hex24dd594

38655380 has 24 divisors (see below), whose sum is σ = 83371848. Its totient is φ = 15043968.

The previous prime is 38655377. The next prime is 38655431. The reversal of 38655380 is 8355683.

38655380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8690704 + 29964676 = 2948^2 + 5474^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25379 + ... + 26858.

It is an arithmetic number, because the mean of its divisors is an integer number (3473827).

Almost surely, 238655380 is an apocalyptic number.

It is an amenable number.

38655380 is an abundant number, since it is smaller than the sum of its proper divisors (44716468).

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

38655380 is a wasteful number, since it uses less digits than its factorization.

38655380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52283 (or 52281 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 38655380 is about 6217.3450925616. The cubic root of 38655380 is about 338.1193164414.

The spelling of 38655380 in words is "thirty-eight million, six hundred fifty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 52237 104474 208948 261185 522370 1044740 1932769 3865538 7731076 9663845 19327690 38655380