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38313349 = 158324203
BaseRepresentation
bin1001001000100…
…1110110000101
32200002112000221
42102021312011
534302011344
63445104341
7643441504
oct222116605
980075027
1038313349
111a699428
12109b80b1
137c25c29
14513483b
15356c184
hex2489d85

38313349 has 4 divisors (see below), whose sum is σ = 38339136. Its totient is φ = 38287564.

The previous prime is 38313323. The next prime is 38313371. The reversal of 38313349 is 94331383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38313349 - 29 = 38312837 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 (38313449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10519 + ... + 13684.

It is an arithmetic number, because the mean of its divisors is an integer number (9584784).

Almost surely, 238313349 is an apocalyptic number.

It is an amenable number.

38313349 is a deficient number, since it is larger than the sum of its proper divisors (25787).

38313349 is a wasteful number, since it uses less digits than its factorization.

38313349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25786.

The product of its digits is 23328, while the sum is 34.

The square root of 38313349 is about 6189.7777827641. Note that the first 4 decimals coincide. The cubic root of 38313349 is about 337.1191101299.

The spelling of 38313349 in words is "thirty-eight million, three hundred thirteen thousand, three hundred forty-nine".

Divisors: 1 1583 24203 38313349