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212041533 = 31129673307
BaseRepresentation
bin11001010001101…
…11111100111101
3112202222211022010
430220313330331
5413240312113
633012441433
75153215614
oct1450677475
9482884263
10212041533
11a9767a40
125b019279
1334c12182
142023887b
15139371c3
hexca37f3d

212041533 has 32 divisors (see below), whose sum is σ = 323919360. Its totient is φ = 122189760.

The previous prime is 212041513. The next prime is 212041549. The reversal of 212041533 is 335140212.

It is not a de Polignac number, because 212041533 - 26 = 212041469 is a prime.

It is a super-2 number, since 2×2120415332 = 89923223433980178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212041513) 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, 62466 + ... + 65772.

It is an arithmetic number, because the mean of its divisors is an integer number (10122480).

Almost surely, 2212041533 is an apocalyptic number.

It is an amenable number.

212041533 is a deficient number, since it is larger than the sum of its proper divisors (111877827).

212041533 is a wasteful number, since it uses less digits than its factorization.

212041533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 212041533 is about 14561.6459577892. The cubic root of 212041533 is about 596.3121319341.

Adding to 212041533 its reverse (335140212), we get a palindrome (547181745).

The spelling of 212041533 in words is "two hundred twelve million, forty-one thousand, five hundred thirty-three".

Divisors: 1 3 11 29 33 67 87 201 319 737 957 1943 2211 3307 5829 9921 21373 36377 64119 95903 109131 221569 287709 664707 1054933 2437259 3164799 6425501 7311777 19276503 70680511 212041533