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202010021110105 = 5136613746991041
BaseRepresentation
bin101101111011101000011111…
…100011001010000101011001
3222111020222011200222001021121
4231323220133203022011121
5202434213010401010410
61553350042245405241
760356512432666165
oct5573503743120531
9874228150861247
10202010021110105
1159403a7258750a
121a7a6a8b409821
1388946039c21b0
1437c54a136dca5
151854b26be99da
hexb7ba1f8ca159

202010021110105 has 16 divisors (see below), whose sum is σ = 261063057006864. Its totient is φ = 149174372229120.

The previous prime is 202010021110103. The next prime is 202010021110109. The reversal of 202010021110105 is 501011120010202.

It can be written as a sum of positive squares in 8 ways, for example, as 17533782776896 + 184476238333209 = 4187336^2 + 13582203^2 .

It is not a de Polignac number, because 202010021110105 - 21 = 202010021110103 is a prime.

It is a super-2 number, since 2×2020100211101052 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202010021110103) 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, 19196616 + ... + 27794425.

It is an arithmetic number, because the mean of its divisors is an integer number (16316441062929).

Almost surely, 2202010021110105 is an apocalyptic number.

It is an amenable number.

202010021110105 is a deficient number, since it is larger than the sum of its proper divisors (59053035896759).

202010021110105 is a wasteful number, since it uses less digits than its factorization.

202010021110105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47057196.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 202010021110105 its reverse (501011120010202), we get a palindrome (703021141120307).

The spelling of 202010021110105 in words is "two hundred two trillion, ten billion, twenty-one million, one hundred ten thousand, one hundred five".

Divisors: 1 5 13 65 66137 330685 859781 4298905 46991041 234955205 610883533 3054417665 3107846478617 15539232393085 40402004222021 202010021110105