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3680445 = 351311873
BaseRepresentation
bin1110000010100010111101
320220222121210
432002202331
51420233240
6210515033
743166106
oct16024275
96828553
103680445
11209419a
121295a79
139bb2a2
146bb3ad
154ca780
hex3828bd

3680445 has 16 divisors (see below), whose sum is σ = 5936832. Its totient is φ = 1946880.

The previous prime is 3680431. The next prime is 3680459. The reversal of 3680445 is 5440863.

3680445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3680431) and next prime (3680459).

It is not a de Polignac number, because 3680445 - 29 = 3679933 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1029 + ... + 2901.

It is an arithmetic number, because the mean of its divisors is an integer number (371052).

Almost surely, 23680445 is an apocalyptic number.

It is an amenable number.

3680445 is a deficient number, since it is larger than the sum of its proper divisors (2256387).

3680445 is a wasteful number, since it uses less digits than its factorization.

3680445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 3680445 is about 1918.4485919617. The cubic root of 3680445 is about 154.3950754378.

The spelling of 3680445 in words is "three million, six hundred eighty thousand, four hundred forty-five".

Divisors: 1 3 5 15 131 393 655 1873 1965 5619 9365 28095 245363 736089 1226815 3680445