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38738385 = 335740993
BaseRepresentation
bin1001001111000…
…1100111010001
32200220010002000
42103301213101
534404112020
63502144213
7650161620
oct223614721
980803060
1038738385
111a9597a4
1210b82069
13804452a
1452056b7
153603090
hex24f19d1

38738385 has 32 divisors (see below), whose sum is σ = 78708480. Its totient is φ = 17708544.

The previous prime is 38738377. The next prime is 38738411. The reversal of 38738385 is 58383783.

It is a happy number.

38738385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38738385 - 23 = 38738377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38738385.

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 31 ways as a sum of consecutive naturals, for example, 19552 + ... + 21441.

It is an arithmetic number, because the mean of its divisors is an integer number (2459640).

Almost surely, 238738385 is an apocalyptic number.

38738385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38738385 is an abundant number, since it is smaller than the sum of its proper divisors (39970095).

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

38738385 is a wasteful number, since it uses less digits than its factorization.

38738385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41014 (or 41008 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 38738385 is about 6224.0167898231. The cubic root of 38738385 is about 338.3611588386.

The spelling of 38738385 in words is "thirty-eight million, seven hundred thirty-eight thousand, three hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 315 945 40993 122979 204965 286951 368937 614895 860853 1106811 1434755 1844685 2582559 4304265 5534055 7747677 12912795 38738385