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202312030131 = 3341281181513
BaseRepresentation
bin1011110001101010111…
…1001001011110110011
3201100012110202222121000
42330122233021132303
511303313334431011
6232535120533043
720421323611431
oct2743257113663
9640173688530
10202312030131
1178888959702
1233261a81183
1316102316c43
149b131a1d51
1553e1420356
hex2f1abc97b3

202312030131 has 16 divisors (see below), whose sum is σ = 299730437920. Its totient is φ = 134870676480.

The previous prime is 202312030099. The next prime is 202312030133. The reversal of 202312030131 is 131030213202.

202312030131 is a `hidden beast` number, since 20 + 2 + 312 + 0 + 301 + 31 = 666.

It is not a de Polignac number, because 202312030131 - 25 = 202312030099 is a prime.

It is a super-2 number, since 2×2023120301312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202312030133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1023831 + ... + 1205343.

It is an arithmetic number, because the mean of its divisors is an integer number (18733152370).

Almost surely, 2202312030131 is an apocalyptic number.

202312030131 is a deficient number, since it is larger than the sum of its proper divisors (97418407789).

202312030131 is a wasteful number, since it uses less digits than its factorization.

202312030131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222803 (or 222797 counting only the distinct ones).

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

Adding to 202312030131 its reverse (131030213202), we get a palindrome (333342243333).

The spelling of 202312030131 in words is "two hundred two billion, three hundred twelve million, thirty thousand, one hundred thirty-one".

Divisors: 1 3 9 27 41281 123843 181513 371529 544539 1114587 1633617 4900851 7493038153 22479114459 67437343377 202312030131