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202010200120 = 23534714554049
BaseRepresentation
bin1011110000100010111…
…1110000100000111000
3201022102102211102122201
42330020233300200320
511302204102400440
6232445135355544
720411000240521
oct2741057604070
9638372742581
10202010200120
1178743545313
1233198982bb4
13160849281c1
149ac5073848
1553c4b9e19a
hex2f08bf0838

202010200120 has 32 divisors (see below), whose sum is σ = 455832846000. Its totient is φ = 80571209728.

The previous prime is 202010200109. The next prime is 202010200169. The reversal of 202010200120 is 21002010202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 202010200097 and 202010200106.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7263145 + ... + 7290904.

Almost surely, 2202010200120 is an apocalyptic number.

202010200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202010200120 is an abundant number, since it is smaller than the sum of its proper divisors (253822645880).

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

202010200120 is a wasteful number, since it uses less digits than its factorization.

202010200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14554407 (or 14554403 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 202010200120 its reverse (21002010202), we get a palindrome (223012210322).

The spelling of 202010200120 in words is "two hundred two billion, ten million, two hundred thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 347 694 1388 1735 2776 3470 6940 13880 14554049 29108098 58216196 72770245 116432392 145540490 291080980 582161960 5050255003 10100510006 20201020012 25251275015 40402040024 50502550030 101005100060 202010200120