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5249660 = 2251361331
BaseRepresentation
bin10100000001101001111100
3100212201011212
4110001221330
52320442120
6304303552
762423063
oct24015174
910781155
105249660
112a66169
121911bb8
13111a610
149a91da
156da6c5
hex501a7c

5249660 has 48 divisors (see below), whose sum is σ = 12103392. Its totient is φ = 1900800.

The previous prime is 5249659. The next prime is 5249663. The reversal of 5249660 is 669425.

5249660 = T384 + T385 + ... + T444.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5249663) 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, 15695 + ... + 16025.

It is an arithmetic number, because the mean of its divisors is an integer number (252154).

Almost surely, 25249660 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 5249660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6051696).

5249660 is an abundant number, since it is smaller than the sum of its proper divisors (6853732).

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

5249660 is a wasteful number, since it uses less digits than its factorization.

5249660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 5249660 is about 2291.2136521940. The cubic root of 5249660 is about 173.7975802616.

The spelling of 5249660 in words is "five million, two hundred forty-nine thousand, six hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 61 65 122 130 244 260 305 331 610 662 793 1220 1324 1586 1655 3172 3310 3965 4303 6620 7930 8606 15860 17212 20191 21515 40382 43030 80764 86060 100955 201910 262483 403820 524966 1049932 1312415 2624830 5249660