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210110111012052 = 223224156477428801
BaseRepresentation
bin101111110001100000010010…
…100001111101010011010100
31000112221022220220011021200100
4233301200102201331103110
5210014421001404341202
62022511130311414100
762153645264100636
oct5761402241752324
91015838826137610
10210110111012052
1160a4721a11a479
121b6948b7084330
1390313b59121b4
1439c5552992a56
1519456a5c0741c
hexbf181287d4d4

210110111012052 has 72 divisors (see below), whose sum is σ = 533326139177832. Its totient is φ = 69744697344000.

The previous prime is 210110111012051. The next prime is 210110111012083. The reversal of 210110111012052 is 250210111011012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8042635090116 + 202067475921936 = 2835954^2 + 14215044^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210110111012051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 489780052 + ... + 490208852.

It is an arithmetic number, because the mean of its divisors is an integer number (7407307488581).

Almost surely, 2210110111012052 is an apocalyptic number.

It is an amenable number.

210110111012052 is an abundant number, since it is smaller than the sum of its proper divisors (323216028165780).

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

210110111012052 is a wasteful number, since it uses less digits than its factorization.

210110111012052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485529 (or 485524 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 18.

Adding to 210110111012052 its reverse (250210111011012), we get a palindrome (460320222023064).

The spelling of 210110111012052 in words is "two hundred ten trillion, one hundred ten billion, one hundred eleven million, twelve thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 241 482 723 964 1446 2169 2892 4338 8676 56477 112954 169431 225908 338862 428801 508293 677724 857602 1016586 1286403 1715204 2033172 2572806 3859209 5145612 7718418 13610957 15436836 27221914 40832871 54443828 81665742 103341041 122498613 163331484 206682082 244997226 310023123 413364164 489994452 620046246 930069369 1240092492 1860138738 3720277476 24217394077 48434788154 72652182231 96869576308 145304364462 217956546693 290608728924 435913093386 871826186772 5836391972557 11672783945114 17509175917671 23345567890228 35018351835342 52527527753013 70036703670684 105055055506026 210110111012052