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12753221858 = 2139719925411
BaseRepresentation
bin10111110000010011…
…01011100011100010
31012220210102210111022
423320021223203202
5202104311044413
65505253445442
7631015411556
oct137011534342
935823383438
1012753221858
115454952383
12257b040882
131283219930
1488da8b866
154e9957608
hex2f826b8e2

12753221858 has 32 divisors (see below), whose sum is σ = 20919158400. Its totient is φ = 5795919360.

The previous prime is 12753221807. The next prime is 12753221863. The reversal of 12753221858 is 85812235721.

12753221858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 489173 + ... + 514583.

It is an arithmetic number, because the mean of its divisors is an integer number (653723700).

Almost surely, 212753221858 is an apocalyptic number.

12753221858 is a deficient number, since it is larger than the sum of its proper divisors (8165936542).

12753221858 is a wasteful number, since it uses less digits than its factorization.

12753221858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25722.

The product of its digits is 268800, while the sum is 44.

The spelling of 12753221858 in words is "twelve billion, seven hundred fifty-three million, two hundred twenty-one thousand, eight hundred fifty-eight".

Divisors: 1 2 13 26 97 194 199 398 1261 2522 2587 5174 19303 25411 38606 50822 250939 330343 501878 660686 2464867 4929734 5056789 10113578 32043271 64086542 65738257 131476514 490508533 981017066 6376610929 12753221858