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3680553 = 31226851
BaseRepresentation
bin1110000010100100101001
320220222202210
432002210221
51420234203
6210515333
743166322
oct16024451
96828683
103680553
112094288
121295b49
139bb356
146bb449
154ca803
hex382929

3680553 has 4 divisors (see below), whose sum is σ = 4907408. Its totient is φ = 2453700.

The previous prime is 3680549. The next prime is 3680563. The reversal of 3680553 is 3550863.

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 not a de Polignac number, because 3680553 - 22 = 3680549 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3680553.

It is not an unprimeable number, because it can be changed into a prime (3680503) 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, 613423 + ... + 613428.

It is an arithmetic number, because the mean of its divisors is an integer number (1226852).

Almost surely, 23680553 is an apocalyptic number.

It is an amenable number.

3680553 is a deficient number, since it is larger than the sum of its proper divisors (1226855).

3680553 is a wasteful number, since it uses less digits than its factorization.

3680553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226854.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 3680553 is about 1918.4767394993. The cubic root of 3680553 is about 154.3965856270.

The spelling of 3680553 in words is "three million, six hundred eighty thousand, five hundred fifty-three".

Divisors: 1 3 1226851 3680553