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3838208697 = 32232806177
BaseRepresentation
bin1110010011000110…
…0110101010111001
3100220111021012111200
43210301212222321
530330040134242
61432510044413
7164054143551
oct34461465271
910814235450
103838208697
11169a629004
128b14a9709
1349225480b
14285a7a161
15176e6704c
hexe4c66ab9

3838208697 has 18 divisors (see below), whose sum is σ = 5795613642. Its totient is φ = 2447550336.

The previous prime is 3838208683. The next prime is 3838208707. The reversal of 3838208697 is 7968028383.

It can be written as a sum of positive squares in only one way, i.e., 3488556096 + 349652601 = 59064^2 + 18699^2 .

It is not a de Polignac number, because 3838208697 - 28 = 3838208441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3838208497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 398328 + ... + 407849.

Almost surely, 23838208697 is an apocalyptic number.

It is an amenable number.

3838208697 is a deficient number, since it is larger than the sum of its proper divisors (1957404945).

3838208697 is a wasteful number, since it uses less digits than its factorization.

3838208697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806229 (or 806203 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 3838208697 is about 61953.2783394067. The cubic root of 3838208697 is about 1565.7035215760.

The spelling of 3838208697 in words is "three billion, eight hundred thirty-eight million, two hundred eight thousand, six hundred ninety-seven".

Divisors: 1 3 9 23 69 207 529 1587 4761 806177 2418531 7255593 18542071 55626213 166878639 426467633 1279402899 3838208697