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20202000220231 = 1735091177919477
BaseRepresentation
bin1001001011111101001010…
…00011000000000001000111
32122112021220010111220110221
410211332211003000001013
510121442144024021411
6110544400515525211
74153355253405514
oct445764503000107
978467803456427
1020202000220231
116489690506305
122323348bb9807
13b3706ab2657b
144dbad3c5430b
15250778c13071
hex125fa50c0047

20202000220231 has 16 divisors (see below), whose sum is σ = 20361467541600. Its totient is φ = 20043034547328.

The previous prime is 20202000220223. The next prime is 20202000220301. The reversal of 20202000220231 is 13202200020202.

It is a cyclic number.

It is not a de Polignac number, because 20202000220231 - 23 = 20202000220223 is a prime.

It is a super-2 number, since 2×202020002202312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202000220201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1037213665 + ... + 1037233141.

It is an arithmetic number, because the mean of its divisors is an integer number (1272591721350).

Almost surely, 220202000220231 is an apocalyptic number.

20202000220231 is a deficient number, since it is larger than the sum of its proper divisors (159467321369).

20202000220231 is a wasteful number, since it uses less digits than its factorization.

20202000220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31938.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20202000220231 its reverse (13202200020202), we get a palindrome (33404200240433).

The spelling of 20202000220231 in words is "twenty trillion, two hundred two billion, two hundred twenty thousand, two hundred thirty-one".

Divisors: 1 173 509 11779 19477 88057 2037767 3369521 5995511 9913793 229419583 1037223403 1715086189 39689587859 116774567747 20202000220231