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312031233101 = 72198319332089
BaseRepresentation
bin1001000101001101000…
…00101100010001001101
31002211101222210222212002
410202212200230101031
520103014443424401
6355202320122045
731354265501600
oct4424640542115
91084358728762
10312031233101
11110371550855
1250582766325
13235695aa753
1411160d70337
1581b3a4da6b
hex48a682c44d

312031233101 has 48 divisors (see below), whose sum is σ = 387067665600. Its totient is φ = 250076719872.

The previous prime is 312031233023. The next prime is 312031233103. The reversal of 312031233101 is 101332130213.

It is not a de Polignac number, because 312031233101 - 210 = 312031232077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312031233103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149367665 + ... + 149369753.

It is an arithmetic number, because the mean of its divisors is an integer number (8063909700).

Almost surely, 2312031233101 is an apocalyptic number.

It is an amenable number.

312031233101 is a deficient number, since it is larger than the sum of its proper divisors (75036432499).

312031233101 is a wasteful number, since it uses less digits than its factorization.

312031233101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138 (or 4131 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 312031233101 its reverse (101332130213), we get a palindrome (413363363314).

The spelling of 312031233101 in words is "three hundred twelve billion, thirty-one million, two hundred thirty-three thousand, one hundred one".

Divisors: 1 7 19 49 83 133 581 931 1577 1933 2089 4067 11039 13531 14623 36727 39691 77273 94717 102361 160439 173387 257089 277837 1123073 1213709 1799623 1944859 3048341 3294353 4038037 7861511 8495963 21338387 23060471 28266259 76722703 149368709 161423297 197863813 335157071 537058921 2346099497 3759412447 6367984349 16422696479 44575890443 312031233101