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202212002020 = 22572267637129
BaseRepresentation
bin1011110001010011000…
…1100100100011100100
3201022221111120000211011
42330110301210203210
511303112233031040
6232521144552004
720416000441330
oct2742461444344
9638844500734
10202212002020
1178837449046
1233234482604
13160b7693702
149b03ba47c0
1553d77623ea
hex2f14c648e4

202212002020 has 48 divisors (see below), whose sum is σ = 485523642240. Its totient is φ = 69299138304.

The previous prime is 202212001997. The next prime is 202212002021. The reversal of 202212002020 is 20200212202.

It is not an unprimeable number, because it can be changed into a prime (202212002021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1185 + ... + 635944.

It is an arithmetic number, because the mean of its divisors is an integer number (10115075880).

Almost surely, 2202212002020 is an apocalyptic number.

202212002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202212002020 is an abundant number, since it is smaller than the sum of its proper divisors (283311640220).

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

202212002020 is a wasteful number, since it uses less digits than its factorization.

202212002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639412 (or 639410 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 202212002020 its reverse (20200212202), we get a palindrome (222412214222).

The spelling of 202212002020 in words is "two hundred two billion, two hundred twelve million, two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2267 4534 9068 11335 15869 22670 31738 45340 63476 79345 158690 317380 637129 1274258 2548516 3185645 4459903 6371290 8919806 12742580 17839612 22299515 44599030 89198060 1444371443 2888742886 5777485772 7221857215 10110600101 14443714430 20221200202 28887428860 40442400404 50553000505 101106001010 202212002020