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202312120444 = 22746715472019
BaseRepresentation
bin1011110001101010111…
…1011111100001111100
3201100012110221120110221
42330122233133201330
511303313400323234
6232535122511124
720421324435640
oct2743257374174
9640173846427
10202312120444
1178888a10545
1233261b054a4
1316102349095
149b131c6c20
1553e143beb4
hex2f1abdf87c

202312120444 has 24 divisors (see below), whose sum is σ = 405490700160. Its totient is φ = 86519524656.

The previous prime is 202312120433. The next prime is 202312120457. The reversal of 202312120444 is 444021213202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7722934 + ... + 7749085.

It is an arithmetic number, because the mean of its divisors is an integer number (16895445840).

Almost surely, 2202312120444 is an apocalyptic number.

It is an amenable number.

202312120444 is an abundant number, since it is smaller than the sum of its proper divisors (203178579716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202312120444 is a wasteful number, since it uses less digits than its factorization.

202312120444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15472497 (or 15472495 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 202312120444 its reverse (444021213202), we get a palindrome (646333333646).

The spelling of 202312120444 in words is "two hundred two billion, three hundred twelve million, one hundred twenty thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 467 934 1868 3269 6538 13076 15472019 30944038 61888076 108304133 216608266 433216532 7225432873 14450865746 28901731492 50578030111 101156060222 202312120444