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3840369 = 313591669
BaseRepresentation
bin1110101001100101110001
321020002222220
432221211301
51440342434
6214151253
744433261
oct16514561
97202886
103840369
112193365
121352529
13a46010
1471d7a1
1550cd49
hex3a9971

3840369 has 16 divisors (see below), whose sum is σ = 5611200. Its totient is φ = 2321856.

The previous prime is 3840359. The next prime is 3840391. The reversal of 3840369 is 9630483.

It is not a de Polignac number, because 3840369 - 213 = 3832177 is a prime.

It is a super-2 number, since 2×38403692 = 29496868112322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3840329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1467 + ... + 3135.

It is an arithmetic number, because the mean of its divisors is an integer number (350700).

Almost surely, 23840369 is an apocalyptic number.

3840369 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3840369 is a deficient number, since it is larger than the sum of its proper divisors (1770831).

3840369 is a wasteful number, since it uses less digits than its factorization.

3840369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 3840369 is about 1959.6859442268. The cubic root of 3840369 is about 156.5997214103.

The spelling of 3840369 in words is "three million, eight hundred forty thousand, three hundred sixty-nine".

Divisors: 1 3 13 39 59 177 767 1669 2301 5007 21697 65091 98471 295413 1280123 3840369