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12122103434 = 2721049117917
BaseRepresentation
bin10110100101000100…
…01001111010001010
31011021210212122202212
423102202021322022
5144311224302214
65322510425122
7606253115300
oct132242117212
934253778685
1012122103434
11516067a801
1224238021a2
1311b2546c8c
1482dd24270
154ae33e53e
hex2d2889e8a

12122103434 has 24 divisors (see below), whose sum is σ = 21172176900. Its totient is φ = 5190190656.

The previous prime is 12122103431. The next prime is 12122103473. The reversal of 12122103434 is 43430122121.

It can be written as a sum of positive squares in 2 ways, for example, as 11577114409 + 544989025 = 107597^2 + 23345^2 .

It is not an unprimeable number, because it can be changed into a prime (12122103431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43844 + ... + 161760.

Almost surely, 212122103434 is an apocalyptic number.

12122103434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12122103434 is a deficient number, since it is larger than the sum of its proper divisors (9050073466).

12122103434 is a wasteful number, since it uses less digits than its factorization.

12122103434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118982 (or 118975 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12122103434 its reverse (43430122121), we get a palindrome (55552225555).

The spelling of 12122103434 in words is "twelve billion, one hundred twenty-two million, one hundred three thousand, four hundred thirty-four".

Divisors: 1 2 7 14 49 98 1049 2098 7343 14686 51401 102802 117917 235834 825419 1650838 5777933 11555866 123694933 247389866 865864531 1731729062 6061051717 12122103434