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212203101233 = 383515533183
BaseRepresentation
bin1100010110100001001…
…0100101110000110001
3202021201210120110100202
43011220102211300301
511434042443214413
6241252412524545
721221406412424
oct3055022456061
9667653513322
10212203101233
1181aa4133832
1235162480755
131701a585736
14a3b0a8b9bb
1557be962e58
hex31684a5c31

212203101233 has 4 divisors (see below), whose sum is σ = 212208672768. Its totient is φ = 212197529700.

The previous prime is 212203101221. The next prime is 212203101269. The reversal of 212203101233 is 332101302212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212203101233 - 26 = 212203101169 is a prime.

It is a super-2 number, since 2×2122031012332 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212203101283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2728241 + ... + 2804942.

It is an arithmetic number, because the mean of its divisors is an integer number (53052168192).

Almost surely, 2212203101233 is an apocalyptic number.

It is an amenable number.

212203101233 is a deficient number, since it is larger than the sum of its proper divisors (5571535).

212203101233 is an equidigital number, since it uses as much as digits as its factorization.

212203101233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571534.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212203101233 its reverse (332101302212), we get a palindrome (544304403445).

The spelling of 212203101233 in words is "two hundred twelve billion, two hundred three million, one hundred one thousand, two hundred thirty-three".

Divisors: 1 38351 5533183 212203101233