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2638248 = 233372971
BaseRepresentation
bin1010000100000110101000
311222000222220
422010012220
51133410443
6132314040
731265454
oct12040650
94860886
102638248
111542178
12a72920
13714ac2
144c9664
15371a83
hex2841a8

2638248 has 32 divisors (see below), whose sum is σ = 6776160. Its totient is φ = 855360.

The previous prime is 2638243. The next prime is 2638253. The reversal of 2638248 is 8428362.

It is an interprime number because it is at equal distance from previous prime (2638243) and next prime (2638253).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2638243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598 + ... + 2373.

It is an arithmetic number, because the mean of its divisors is an integer number (211755).

22638248 is an apocalyptic number.

It is an amenable number.

2638248 is an abundant number, since it is smaller than the sum of its proper divisors (4137912).

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

2638248 is a wasteful number, since it uses less digits than its factorization.

2638248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017 (or 3013 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 2638248 is about 1624.2684507187. The cubic root of 2638248 is about 138.1778844469.

The spelling of 2638248 in words is "two million, six hundred thirty-eight thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 37 74 111 148 222 296 444 888 2971 5942 8913 11884 17826 23768 35652 71304 109927 219854 329781 439708 659562 879416 1319124 2638248