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212768106430 = 25117924484247
BaseRepresentation
bin1100011000100111110…
…1111010011110111110
3202100012011201200210011
43012021331322132332
511441222113401210
6241424434533434
721241410031045
oct3061175723676
9670164650704
10212768106430
118226405a580
123529b73727a
13170aa64aa39
14a425b2555c
15580436bd8a
hex3189f7a7be

212768106430 has 32 divisors (see below), whose sum is σ = 423087805440. Its totient is φ = 76390847520.

The previous prime is 212768106407. The next prime is 212768106437. The reversal of 212768106430 is 34601867212.

It is a super-2 number, since 2×2127681064302 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212768106437) 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, 12233434 + ... + 12250813.

It is an arithmetic number, because the mean of its divisors is an integer number (13221493920).

Almost surely, 2212768106430 is an apocalyptic number.

212768106430 is a deficient number, since it is larger than the sum of its proper divisors (210319699010).

212768106430 is a wasteful number, since it uses less digits than its factorization.

212768106430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24484344.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 212768106430 in words is "two hundred twelve billion, seven hundred sixty-eight million, one hundred six thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 55 79 110 158 395 790 869 1738 4345 8690 24484247 48968494 122421235 244842470 269326717 538653434 1346633585 1934255513 2693267170 3868511026 9671277565 19342555130 21276810643 42553621286 106384053215 212768106430