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202003131222 = 23232771342449
BaseRepresentation
bin1011110000100001010…
…0110010101101010110
3201022101221112021221200
42330020110302231112
511302200300144342
6232444324053330
720410553166504
oct2741024625526
9638357467850
10202003131222
117873a557352
1233196534246
1316083321819
149ac4153674
1553c425494c
hex2f08532b56

202003131222 has 24 divisors (see below), whose sum is σ = 437688084600. Its totient is φ = 67332125760.

The previous prime is 202003131221. The next prime is 202003131263. The reversal of 202003131222 is 222131300202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202003131195 and 202003131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202003131221) 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, 418654 + ... + 761102.

It is an arithmetic number, because the mean of its divisors is an integer number (18237003525).

Almost surely, 2202003131222 is an apocalyptic number.

202003131222 is an abundant number, since it is smaller than the sum of its proper divisors (235684953378).

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

202003131222 is a wasteful number, since it uses less digits than its factorization.

202003131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375228 (or 375225 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 202003131222 its reverse (222131300202), we get a palindrome (424134431424).

The spelling of 202003131222 in words is "two hundred two billion, three million, one hundred thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 32771 65542 98313 196626 294939 342449 589878 684898 1027347 2054694 3082041 6164082 11222396179 22444792358 33667188537 67334377074 101001565611 202003131222