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12123102350 = 252242462047
BaseRepresentation
bin10110100101001011…
…11101110010001110
31011021212202102000202
423102211331302032
5144312003233400
65322544053502
7606264445502
oct132245756216
934255672022
1012123102350
1151611a2257
122424004292
1311b2806858
14830104302
154ae48a4d5
hex2d297dc8e

12123102350 has 12 divisors (see below), whose sum is σ = 22548970464. Its totient is φ = 4849240920.

The previous prime is 12123102307. The next prime is 12123102371. The reversal of 12123102350 is 5320132121.

It is a super-2 number, since 2×121231023502 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121230974 + ... + 121231073.

It is an arithmetic number, because the mean of its divisors is an integer number (1879080872).

Almost surely, 212123102350 is an apocalyptic number.

12123102350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123102350 is a deficient number, since it is larger than the sum of its proper divisors (10425868114).

12123102350 is a wasteful number, since it uses less digits than its factorization.

12123102350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242462059 (or 242462054 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 12123102350 its reverse (5320132121), we get a palindrome (17443234471).

The spelling of 12123102350 in words is "twelve billion, one hundred twenty-three million, one hundred two thousand, three hundred fifty".

Divisors: 1 2 5 10 25 50 242462047 484924094 1212310235 2424620470 6061551175 12123102350