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38387384 = 237297927
BaseRepresentation
bin1001001001101…
…1111010111000
32200020021120222
42102123322320
534311344014
63450435212
7644200400
oct222337270
980207528
1038387384
111a73a012
1210a32b08
137c50839
145153800
15358408e
hex249beb8

38387384 has 24 divisors (see below), whose sum is σ = 83728440. Its totient is φ = 16451568.

The previous prime is 38387383. The next prime is 38387399. The reversal of 38387384 is 48378383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38387383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48572 + ... + 49355.

It is an arithmetic number, because the mean of its divisors is an integer number (3488685).

Almost surely, 238387384 is an apocalyptic number.

It is an amenable number.

38387384 is an abundant number, since it is smaller than the sum of its proper divisors (45341056).

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

38387384 is a wasteful number, since it uses less digits than its factorization.

38387384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97947 (or 97936 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 38387384 is about 6195.7553211856. The cubic root of 38387384 is about 337.3361150373.

Subtracting 38387384 from its reverse (48378383), we obtain a palindrome (9990999).

The spelling of 38387384 in words is "thirty-eight million, three hundred eighty-seven thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 97927 195854 391708 685489 783416 1370978 2741956 4798423 5483912 9596846 19193692 38387384