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3632980 = 2251389157
BaseRepresentation
bin1101110110111101010100
320211120111211
431312331110
51412223410
6205511204
742610531
oct15667524
96746454
103632980
11206156a
121272504
139a27c0
146a7d88
154bb68a
hex376f54

3632980 has 48 divisors (see below), whose sum is σ = 8361360. Its totient is φ = 1317888.

The previous prime is 3632963. The next prime is 3632987. The reversal of 3632980 is 892363.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 956484 + 2676496 = 978^2 + 1636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3632987) 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, 23062 + ... + 23218.

It is an arithmetic number, because the mean of its divisors is an integer number (174195).

Almost surely, 23632980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3632980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4180680).

3632980 is an abundant number, since it is smaller than the sum of its proper divisors (4728380).

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

3632980 is a wasteful number, since it uses less digits than its factorization.

3632980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 3632980 is about 1906.0377750716. The cubic root of 3632980 is about 153.7284809154.

The spelling of 3632980 in words is "three million, six hundred thirty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 89 130 157 178 260 314 356 445 628 785 890 1157 1570 1780 2041 2314 3140 4082 4628 5785 8164 10205 11570 13973 20410 23140 27946 40820 55892 69865 139730 181649 279460 363298 726596 908245 1816490 3632980