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3630980 = 225181549
BaseRepresentation
bin1101110110011110000100
320211110202202
431312132010
51412142410
6205454032
742601643
oct15663604
96743682
103630980
112060011
121271318
139a1912
146a735a
154baca5
hex376784

3630980 has 12 divisors (see below), whose sum is σ = 7625100. Its totient is φ = 1452384.

The previous prime is 3630973. The next prime is 3630983. The reversal of 3630980 is 890363.

It can be written as a sum of positive squares in 2 ways, for example, as 835396 + 2795584 = 914^2 + 1672^2 .

It is not an unprimeable number, because it can be changed into a prime (3630983) 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, 90755 + ... + 90794.

It is an arithmetic number, because the mean of its divisors is an integer number (635425).

Almost surely, 23630980 is an apocalyptic number.

It is an amenable number.

3630980 is an abundant number, since it is smaller than the sum of its proper divisors (3994120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3630980 is a wasteful number, since it uses less digits than its factorization.

3630980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181558 (or 181556 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 3630980 is about 1905.5130542717. The cubic root of 3630980 is about 153.7002659332.

The spelling of 3630980 in words is "three million, six hundred thirty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 181549 363098 726196 907745 1815490 3630980