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210133212 = 223372112243
BaseRepresentation
bin11001000011001…
…10000011011100
3112122101212120120
430201212003130
5412243230322
632503514540
75131050162
oct1441460334
9478355516
10210133212
11a8684213
125a458a50
13346c46a3
141dc9d232
15136aba5c
hexc8660dc

210133212 has 48 divisors (see below), whose sum is σ = 506174592. Its totient is φ = 67798080.

The previous prime is 210133207. The next prime is 210133213. The reversal of 210133212 is 212331012.

It is a junction number, because it is equal to n+sod(n) for n = 210133191 and 210133200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210133213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92563 + ... + 94805.

It is an arithmetic number, because the mean of its divisors is an integer number (10545304).

Almost surely, 2210133212 is an apocalyptic number.

It is an amenable number.

210133212 is an abundant number, since it is smaller than the sum of its proper divisors (296041380).

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

210133212 is a wasteful number, since it uses less digits than its factorization.

210133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498 (or 2496 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 210133212 is about 14495.9722681854. The cubic root of 210133212 is about 594.5178515248.

Adding to 210133212 its reverse (212331012), we get a palindrome (422464224).

The spelling of 210133212 in words is "two hundred ten million, one hundred thirty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 211 222 422 444 633 844 1266 2243 2532 4486 6729 7807 8972 13458 15614 23421 26916 31228 46842 82991 93684 165982 248973 331964 473273 497946 946546 995892 1419819 1893092 2839638 5679276 17511101 35022202 52533303 70044404 105066606 210133212