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38471389 = 1114472417
BaseRepresentation
bin1001001011000…
…0011011011101
32200101112211021
42102300123131
534322041024
63452324141
7645000325
oct222603335
980345737
1038471389
111a797140
1210a73651
137c7cb48
145176285
15359dde4
hex24b06dd

38471389 has 8 divisors (see below), whose sum is σ = 42015168. Its totient is φ = 34935360.

The previous prime is 38471383. The next prime is 38471399. The reversal of 38471389 is 98317483.

It is a happy number.

38471389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38471389 - 27 = 38471261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38471383) by changing a digit.

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, 14709 + ... + 17125.

It is an arithmetic number, because the mean of its divisors is an integer number (5251896).

Almost surely, 238471389 is an apocalyptic number.

It is an amenable number.

38471389 is a deficient number, since it is larger than the sum of its proper divisors (3543779).

38471389 is a wasteful number, since it uses less digits than its factorization.

38471389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3875.

The product of its digits is 145152, while the sum is 43.

The square root of 38471389 is about 6202.5308544174. The cubic root of 38471389 is about 337.5820054957.

The spelling of 38471389 in words is "thirty-eight million, four hundred seventy-one thousand, three hundred eighty-nine".

Divisors: 1 11 1447 2417 15917 26587 3497399 38471389