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38769849 = 324307761
BaseRepresentation
bin1001001111100…
…1010010111001
32200221201020100
42103321102321
534411113344
63502550013
7650352426
oct223712271
980851210
1038769849
111a9803a8
1210b98309
138055951
145212d4d
15360c569
hex24f94b9

38769849 has 6 divisors (see below), whose sum is σ = 56000906. Its totient is φ = 25846560.

The previous prime is 38769817. The next prime is 38769859. The reversal of 38769849 is 94896783.

It can be written as a sum of positive squares in only one way, i.e., 21902400 + 16867449 = 4680^2 + 4107^2 .

It is not a de Polignac number, because 38769849 - 25 = 38769817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38769795 and 38769804.

It is not an unprimeable number, because it can be changed into a prime (38769859) 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, 2153872 + ... + 2153889.

Almost surely, 238769849 is an apocalyptic number.

It is an amenable number.

38769849 is a deficient number, since it is larger than the sum of its proper divisors (17231057).

38769849 is a wasteful number, since it uses less digits than its factorization.

38769849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307767 (or 4307764 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 38769849 is about 6226.5439049283. The cubic root of 38769849 is about 338.4527416831.

The spelling of 38769849 in words is "thirty-eight million, seven hundred sixty-nine thousand, eight hundred forty-nine".

Divisors: 1 3 9 4307761 12923283 38769849