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211012203130 = 2531167849583
BaseRepresentation
bin1100010010000101001…
…1101011001001111010
3202011122210200120021121
43010201103223021322
511424123111000010
6240534311455454
721150036063331
oct3044123531172
9664583616247
10211012203130
1181542984423
1234a8b68758a
1316b8a92a0c1
14a2da84ad18
1557501243da
hex31214eb27a

211012203130 has 16 divisors (see below), whose sum is σ = 381043263744. Its totient is φ = 84133481680.

The previous prime is 211012203107. The next prime is 211012203133. The reversal of 211012203130 is 31302210112.

It is a super-2 number, since 2×2110122031302 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211012203133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33921682 + ... + 33927901.

It is an arithmetic number, because the mean of its divisors is an integer number (23815203984).

Almost surely, 2211012203130 is an apocalyptic number.

211012203130 is a deficient number, since it is larger than the sum of its proper divisors (170031060614).

211012203130 is a wasteful number, since it uses less digits than its factorization.

211012203130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67849901.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 211012203130 its reverse (31302210112), we get a palindrome (242314413242).

The spelling of 211012203130 in words is "two hundred eleven billion, twelve million, two hundred three thousand, one hundred thirty".

Divisors: 1 2 5 10 311 622 1555 3110 67849583 135699166 339247915 678495830 21101220313 42202440626 105506101565 211012203130