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212033423 = 7106128549
BaseRepresentation
bin11001010001101…
…01111110001111
3112202222102011202
430220311332033
5413240032143
633012340115
75153153150
oct1450657617
9482872152
10212033423
11a9761938
125b01463b
1334c0b584
1420235927
1513934ab8
hexca35f8f

212033423 has 8 divisors (see below), whose sum is σ = 242560800. Its totient is φ = 181565280.

The previous prime is 212033383. The next prime is 212033461. The reversal of 212033423 is 324330212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212033423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212033395 and 212033404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212033023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6848 + ... + 21701.

It is an arithmetic number, because the mean of its divisors is an integer number (30320100).

Almost surely, 2212033423 is an apocalyptic number.

212033423 is a deficient number, since it is larger than the sum of its proper divisors (30527377).

212033423 is a wasteful number, since it uses less digits than its factorization.

212033423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29617.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 212033423 is about 14561.3674838595. The cubic root of 212033423 is about 596.3045294093.

Adding to 212033423 its reverse (324330212), we get a palindrome (536363635).

The spelling of 212033423 in words is "two hundred twelve million, thirty-three thousand, four hundred twenty-three".

Divisors: 1 7 1061 7427 28549 199843 30290489 212033423