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212131030310 = 25531492686223
BaseRepresentation
bin1100010110001111111…
…1101010010100100110
3202021112202221212122022
43011203333222110212
511433421020432220
6241241320103142
721216543002213
oct3054377522446
9667482855568
10212131030310
1181a67488891
1235142304ab2
1317008670414
14a3a528ab0a
1557b8478925
hex3163fea526

212131030310 has 32 divisors (see below), whose sum is σ = 391651459200. Its totient is φ = 82692658048.

The previous prime is 212131030301. The next prime is 212131030343. The reversal of 212131030310 is 13030131212.

It is a super-2 number, since 2×2121310303102 (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 15 ways as a sum of consecutive naturals, for example, 1264142 + ... + 1422081.

It is an arithmetic number, because the mean of its divisors is an integer number (12239108100).

Almost surely, 2212131030310 is an apocalyptic number.

212131030310 is a deficient number, since it is larger than the sum of its proper divisors (179520428890).

212131030310 is a wasteful number, since it uses less digits than its factorization.

212131030310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686432.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 212131030310 its reverse (13030131212), we get a palindrome (225161161522).

The spelling of 212131030310 in words is "two hundred twelve billion, one hundred thirty-one million, thirty thousand, three hundred ten".

Divisors: 1 2 5 10 53 106 149 265 298 530 745 1490 7897 15794 39485 78970 2686223 5372446 13431115 26862230 142369819 284739638 400247227 711849095 800494454 1423698190 2001236135 4002472270 21213103031 42426206062 106065515155 212131030310