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211011020120 = 23532843160621
BaseRepresentation
bin1100010010000100111…
…1001010010101011000
3202011122201110110111102
43010201033022111120
511424122310120440
6240534230250532
721150023035325
oct3044117122530
9664581413442
10211011020120
118154224662a
1234a8b1b6a48
1316b8a6047b4
14a2da61db4c
15574ee8db15
hex31213ca558

211011020120 has 32 divisors (see below), whose sum is σ = 474792207120. Its totient is φ = 84401312640.

The previous prime is 211011020113. The next prime is 211011020147. The reversal of 211011020120 is 21020110112.

It is a super-2 number, since 2×2110110201202 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1233410 + ... + 1394030.

Almost surely, 2211011020120 is an apocalyptic number.

211011020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211011020120 is an abundant number, since it is smaller than the sum of its proper divisors (263781187000).

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

211011020120 is a wasteful number, since it uses less digits than its factorization.

211011020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193475 (or 193471 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211011020120 its reverse (21020110112), we get a palindrome (232031130232).

The spelling of 211011020120 in words is "two hundred eleven billion, eleven million, twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 32843 65686 131372 160621 164215 262744 321242 328430 642484 656860 803105 1284968 1313720 1606210 3212420 6424840 5275275503 10550551006 21101102012 26376377515 42202204024 52752755030 105505510060 211011020120