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20023848 = 2334132377
BaseRepresentation
bin100110001100…
…0101000101000
31101200022120000
41030120220220
520111230343
61553103000
7332125365
oct114305050
941608500
1020023848
1110337239
126857a60
1341c1240
14293346c
151b57ed3
hex1318a28

20023848 has 80 divisors (see below), whose sum is σ = 60424980. Its totient is φ = 6158592.

The previous prime is 20023847. The next prime is 20023859. The reversal of 20023848 is 84832002.

It can be written as a sum of positive squares in 2 ways, for example, as 18818244 + 1205604 = 4338^2 + 1098^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20023847) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7236 + ... + 9612.

Almost surely, 220023848 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 20023848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30212490).

20023848 is an abundant number, since it is smaller than the sum of its proper divisors (40401132).

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

20023848 is a wasteful number, since it uses less digits than its factorization.

20023848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 20023848 is about 4474.8014481092. The cubic root of 20023848 is about 271.5496078578.

The spelling of 20023848 in words is "twenty million, twenty-three thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 81 104 108 117 156 162 216 234 312 324 351 468 648 702 936 1053 1404 2106 2377 2808 4212 4754 7131 8424 9508 14262 19016 21393 28524 30901 42786 57048 61802 64179 85572 92703 123604 128358 171144 185406 192537 247208 256716 278109 370812 385074 513432 556218 741624 770148 834327 1112436 1540296 1668654 2224872 2502981 3337308 5005962 6674616 10011924 20023848