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38384505 = 325852989
BaseRepresentation
bin1001001001101…
…1001101111001
32200020010122100
42102123031321
534311301010
63450414013
7644156115
oct222331571
980203570
1038384505
111a737935
1210a31309
137c4c433
145152745
1535832c0
hex249b379

38384505 has 12 divisors (see below), whose sum is σ = 66533220. Its totient is φ = 20471712.

The previous prime is 38384497. The next prime is 38384527. The reversal of 38384505 is 50548383.

It can be written as a sum of positive squares in 2 ways, for example, as 26749584 + 11634921 = 5172^2 + 3411^2 .

It is not a de Polignac number, because 38384505 - 23 = 38384497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38384505.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 426450 + ... + 426539.

It is an arithmetic number, because the mean of its divisors is an integer number (5544435).

Almost surely, 238384505 is an apocalyptic number.

It is an amenable number.

38384505 is a deficient number, since it is larger than the sum of its proper divisors (28148715).

38384505 is a wasteful number, since it uses less digits than its factorization.

38384505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853000 (or 852997 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 38384505 is about 6195.5229803464. The cubic root of 38384505 is about 337.3276815812.

The spelling of 38384505 in words is "thirty-eight million, three hundred eighty-four thousand, five hundred five".

Divisors: 1 3 5 9 15 45 852989 2558967 4264945 7676901 12794835 38384505