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3872369 = 33111699
BaseRepresentation
bin1110110001011001110001
321021201220002
432301121301
51442403434
6214555345
744625464
oct16613161
97251802
103872369
112205406
121368b55
13a57757
1472b2db
1551757e
hex3b1671

3872369 has 4 divisors (see below), whose sum is σ = 3884400. Its totient is φ = 3860340.

The previous prime is 3872359. The next prime is 3872381. The reversal of 3872369 is 9632783.

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 a de Polignac number, because none of the positive numbers 2k-3872369 is a prime.

It is a super-2 number, since 2×38723692 = 29990483344322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3872329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5519 + ... + 6180.

It is an arithmetic number, because the mean of its divisors is an integer number (971100).

Almost surely, 23872369 is an apocalyptic number.

It is an amenable number.

3872369 is a deficient number, since it is larger than the sum of its proper divisors (12031).

3872369 is a wasteful number, since it uses less digits than its factorization.

3872369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12030.

The product of its digits is 54432, while the sum is 38.

The square root of 3872369 is about 1967.8335803619. The cubic root of 3872369 is about 157.0334763024.

The spelling of 3872369 in words is "three million, eight hundred seventy-two thousand, three hundred sixty-nine".

Divisors: 1 331 11699 3872369