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214164972 = 22347891061
BaseRepresentation
bin11001100001111…
…10010111101100
3112220222201010000
430300332113230
5414311234342
633130144300
75210241450
oct1460762754
9486881100
10214164972
11aa98834a
125b882090
13354a6848
142062c660
1513c0644c
hexcc3e5ec

214164972 has 120 divisors (see below), whose sum is σ = 647650080. Its totient is φ = 60445440.

The previous prime is 214164953. The next prime is 214165009. The reversal of 214164972 is 279461412.

It is a happy number.

214164972 is a `hidden beast` number, since 2 + 1 + 4 + 1 + 649 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 201322 + ... + 202382.

It is an arithmetic number, because the mean of its divisors is an integer number (5397084).

Almost surely, 2214164972 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 214164972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323825040).

214164972 is an abundant number, since it is smaller than the sum of its proper divisors (433485108).

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

214164972 is a wasteful number, since it uses less digits than its factorization.

214164972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1162 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 214164972 is about 14634.3763789237. The cubic root of 214164972 is about 598.2960655933.

The spelling of 214164972 in words is "two hundred fourteen million, one hundred sixty-four thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 89 108 126 162 178 189 252 267 324 356 378 534 567 623 756 801 1061 1068 1134 1246 1602 1869 2122 2268 2403 2492 3183 3204 3738 4244 4806 5607 6366 7209 7427 7476 9549 9612 11214 12732 14418 14854 16821 19098 22281 22428 28647 28836 29708 33642 38196 44562 50463 57294 66843 67284 85941 89124 94429 100926 114588 133686 171882 188858 200529 201852 267372 283287 343764 377716 401058 566574 601587 661003 802116 849861 1133148 1203174 1322006 1699722 1983009 2406348 2549583 2644012 3399444 3966018 5099166 5949027 7648749 7932036 10198332 11898054 15297498 17847081 23796108 30594996 35694162 53541243 71388324 107082486 214164972