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220254132 = 223731412063
BaseRepresentation
bin11010010000011…
…00111110110100
3120100110001212110
431020030332310
5422341113012
633504451020
75313062220
oct1510147664
9510401773
10220254132
1110336720a
1261919a70
13368292b7
1421375780
151450a73c
hexd20cfb4

220254132 has 96 divisors (see below), whose sum is σ = 621379584. Its totient is φ = 59385600.

The previous prime is 220254121. The next prime is 220254157. The reversal of 220254132 is 231452022.

220254132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 220254099 and 220254108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105733 + ... + 107795.

It is an arithmetic number, because the mean of its divisors is an integer number (6472704).

Almost surely, 2220254132 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 220254132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310689792).

220254132 is an abundant number, since it is smaller than the sum of its proper divisors (401125452).

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

220254132 is a wasteful number, since it uses less digits than its factorization.

220254132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149 (or 2147 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 220254132 is about 14840.9612896200. The cubic root of 220254132 is about 603.9134307167.

The spelling of 220254132 in words is "two hundred twenty million, two hundred fifty-four thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 31 41 42 62 82 84 93 123 124 164 186 217 246 287 372 434 492 574 651 861 868 1148 1271 1302 1722 2063 2542 2604 3444 3813 4126 5084 6189 7626 8252 8897 12378 14441 15252 17794 24756 26691 28882 35588 43323 53382 57764 63953 84583 86646 106764 127906 169166 173292 191859 253749 255812 338332 383718 447671 507498 592081 767436 895342 1014996 1184162 1343013 1776243 1790684 2368324 2622073 2686026 3552486 5244146 5372052 7104972 7866219 10488292 15732438 18354511 31464876 36709022 55063533 73418044 110127066 220254132