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212031032 = 23191394941
BaseRepresentation
bin11001010001101…
…01011000111000
3112202222021220012
430220311120320
5413234443112
633012321052
75153143163
oct1450653070
9482867805
10212031032
11a9760064
125b013188
1334c0a465
1420234ada
1513934022
hexca35638

212031032 has 16 divisors (see below), whose sum is σ = 418482600. Its totient is φ = 100435680.

The previous prime is 212031031. The next prime is 212031047. The reversal of 212031032 is 230130212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212030998 and 212031016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212031031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697319 + ... + 697622.

Almost surely, 2212031032 is an apocalyptic number.

It is an amenable number.

212031032 is a deficient number, since it is larger than the sum of its proper divisors (206451568).

212031032 is a wasteful number, since it uses less digits than its factorization.

212031032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394966 (or 1394962 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 212031032 is about 14561.2853828225. The cubic root of 212031032 is about 596.3022879867.

Adding to 212031032 its reverse (230130212), we get a palindrome (442161244).

The spelling of 212031032 in words is "two hundred twelve million, thirty-one thousand, thirty-two".

Divisors: 1 2 4 8 19 38 76 152 1394941 2789882 5579764 11159528 26503879 53007758 106015516 212031032