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312101020101213 = 32710149049350951
BaseRepresentation
bin100011011110110101010111…
…0011011111110101001011101
31111221001120021201011112200200
41012331222232123332221131
5311401430342121214323
63023441121305414113
7122511361140262110
oct10675525633765135
91457046251145620
10312101020101213
1190499332432582
122b00732819a339
131051bccca5b805
14570daacb36577
1526136e531b443
hex11bdaae6fea5d

312101020101213 has 24 divisors (see below), whose sum is σ = 520315514898816. Its totient is φ = 176577663420000.

The previous prime is 312101020101203. The next prime is 312101020101263.

312101020101213 is a `hidden beast` number, since 31 + 210 + 10 + 201 + 0 + 1 + 213 = 666.

312101020101213 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 312101020101213 - 228 = 312100751665757 is a prime.

It is a super-2 number, since 2×3121010201012132 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312101020101203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24524669113 + ... + 24524681838.

It is an arithmetic number, because the mean of its divisors is an integer number (21679813120784).

Almost surely, 2312101020101213 is an apocalyptic number.

It is an amenable number.

312101020101213 is a deficient number, since it is larger than the sum of its proper divisors (208214494797603).

312101020101213 is a wasteful number, since it uses less digits than its factorization.

312101020101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49049351065 (or 49049351062 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 312101020101213 in words is "three hundred twelve trillion, one hundred one billion, twenty million, one hundred one thousand, two hundred thirteen".

Divisors: 1 3 7 9 21 63 101 303 707 909 2121 6363 49049350951 147148052853 343345456657 441444158559 1030036369971 3090109109913 4953984446051 14861953338153 34677891122357 44585860014459 104033673367071 312101020101213