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2112025188 = 2237136728867
BaseRepresentation
bin111110111100010…
…1111001001100100
312110012010222220010
41331320233021210
513311134301223
6545324010220
7103223626560
oct17570571144
95405128803
102112025188
11994201869
124ab390970
1327873b460
141606da6a0
15c5640393
hex7de2f264

2112025188 has 96 divisors (see below), whose sum is σ = 6156043264. Its totient is φ = 548684928.

The previous prime is 2112025187. The next prime is 2112025189. The reversal of 2112025188 is 8815202112.

It is an interprime number because it is at equal distance from previous prime (2112025187) and next prime (2112025189).

It is not an unprimeable number, because it can be changed into a prime (2112025187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58731 + ... + 87597.

Almost surely, 22112025188 is an apocalyptic number.

2112025188 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112025188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3078021632).

2112025188 is an abundant number, since it is smaller than the sum of its proper divisors (4044018076).

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

2112025188 is a wasteful number, since it uses less digits than its factorization.

2112025188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28961 (or 28959 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 2112025188 is about 45956.7752132371. The cubic root of 2112025188 is about 1283.0188324436.

The spelling of 2112025188 in words is "two billion, one hundred twelve million, twenty-five thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 67 78 84 91 134 156 182 201 268 273 364 402 469 546 804 871 938 1092 1407 1742 1876 2613 2814 3484 5226 5628 6097 10452 12194 18291 24388 28867 36582 57734 73164 86601 115468 173202 202069 346404 375271 404138 606207 750542 808276 1125813 1212414 1501084 1934089 2251626 2424828 2626897 3868178 4503252 5253794 5802267 7736356 7880691 10507588 11604534 13538623 15761382 23209068 25143157 27077246 31522764 40615869 50286314 54154492 75429471 81231738 100572628 150858942 162463476 176002099 301717884 352004198 528006297 704008396 1056012594 2112025188