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20024748 = 2232556243
BaseRepresentation
bin100110001100…
…0110110101100
31101200100210100
41030120312230
520111242443
61553111100
7332131122
oct114306654
941610710
1020024748
1110337987
126858490
1341c1783
142933912
151b583d3
hex1318dac

20024748 has 18 divisors (see below), whose sum is σ = 50618204. Its totient is φ = 6674904.

The previous prime is 20024747. The next prime is 20024749. The reversal of 20024748 is 84742002.

It is an interprime number because it is at equal distance from previous prime (20024747) and next prime (20024749).

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (20024747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278086 + ... + 278157.

Almost surely, 220024748 is an apocalyptic number.

It is an amenable number.

20024748 is an abundant number, since it is smaller than the sum of its proper divisors (30593456).

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

20024748 is a wasteful number, since it uses less digits than its factorization.

20024748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556253 (or 556248 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 20024748 is about 4474.9020101003. The cubic root of 20024748 is about 271.5536761898.

The spelling of 20024748 in words is "twenty million, twenty-four thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 556243 1112486 1668729 2224972 3337458 5006187 6674916 10012374 20024748