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100302231213 = 3214974796593
BaseRepresentation
bin101110101101001111…
…0101001011010101101
3100120220020100021112100
41131122132221122231
53120404332344323
6114024520525313
710150403620032
oct1353236513255
9316806307470
10100302231213
11395a0aa3968
1217533020839
1395c630bc92
144bd7255389
152920a39943
hex175a7a96ad

100302231213 has 12 divisors (see below), whose sum is σ = 145853358300. Its totient is φ = 66419373696.

The previous prime is 100302231193. The next prime is 100302231251. The reversal of 100302231213 is 312132203001.

It can be written as a sum of positive squares in 2 ways, for example, as 16667326404 + 83634904809 = 129102^2 + 289197^2 .

It is not a de Polignac number, because 100302231213 - 26 = 100302231149 is a prime.

It is a super-2 number, since 2×1003022312132 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100302271213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37396956 + ... + 37399637.

It is an arithmetic number, because the mean of its divisors is an integer number (12154446525).

Almost surely, 2100302231213 is an apocalyptic number.

It is an amenable number.

100302231213 is a deficient number, since it is larger than the sum of its proper divisors (45551127087).

100302231213 is a wasteful number, since it uses less digits than its factorization.

100302231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74796748 (or 74796745 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 100302231213 its reverse (312132203001), we get a palindrome (412434434214).

The spelling of 100302231213 in words is "one hundred billion, three hundred two million, two hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 3 9 149 447 1341 74796593 224389779 673169337 11144692357 33434077071 100302231213