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312552121255213 = 7229993719413707
BaseRepresentation
bin100011100010000111011011…
…0001010010100010100101101
31111222122200122201120111121211
41013010032312022110110231
5311431323221020131323
63024424243504554421
7122556100634646310
oct10704166612242455
91458580581514554
10312552121255213
1190652679260254
122b07a841022a11
1310552700302888
145727863988977
1526202e80bc70d
hex11c43b629452d

312552121255213 has 8 divisors (see below), whose sum is σ = 357202598000832. Its totient is φ = 267901687936896.

The previous prime is 312552121255207. The next prime is 312552121255289.

312552121255213 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 312552121255213 - 25 = 312552121255181 is a prime.

It is a super-2 number, since 2×3125521212552132 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312552121256213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6392706 + ... + 25806412.

It is an arithmetic number, because the mean of its divisors is an integer number (44650324750104).

Almost surely, 2312552121255213 is an apocalyptic number.

It is an amenable number.

312552121255213 is a deficient number, since it is larger than the sum of its proper divisors (44650476745619).

312552121255213 is a wasteful number, since it uses less digits than its factorization.

312552121255213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21713651.

The product of its digits is 180000, while the sum is 40.

The spelling of 312552121255213 in words is "three hundred twelve trillion, five hundred fifty-two billion, one hundred twenty-one million, two hundred fifty-five thousand, two hundred thirteen".

Divisors: 1 7 2299937 16099559 19413707 135895949 44650303036459 312552121255213