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31884204324 = 22373710994117
BaseRepresentation
bin11101101100011100…
…100101100100100100
310001022001202101210110
4131230130211210210
51010244324014244
622351501053020
72206056156630
oct355434454444
9101261671713
1031884204324
1112581890695
126219b57170
1330118580bb
14178679ddc0
15c692669b9
hex76c725924

31884204324 has 96 divisors (see below), whose sum is σ = 88124565760. Its totient is φ = 8782152192.

The previous prime is 31884204281. The next prime is 31884204397. The reversal of 31884204324 is 42340248813.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291714 + ... + 385830.

Almost surely, 231884204324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31884204324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44062282880).

31884204324 is an abundant number, since it is smaller than the sum of its proper divisors (56240361436).

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

31884204324 is a wasteful number, since it uses less digits than its factorization.

31884204324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94277 (or 94275 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 39.

The spelling of 31884204324 in words is "thirty-one billion, eight hundred eighty-four million, two hundred four thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 37 42 74 84 109 111 148 218 222 259 327 436 444 518 654 763 777 1036 1308 1526 1554 2289 3052 3108 4033 4578 8066 9156 12099 16132 24198 28231 48396 56462 84693 94117 112924 169386 188234 282351 338772 376468 564702 658819 1129404 1317638 1976457 2635276 3482329 3952914 6964658 7905828 10258753 10446987 13929316 20517506 20893974 24376303 30776259 41035012 41787948 48752606 61552518 71811271 73128909 97505212 123105036 143622542 146257818 215433813 287245084 292515636 379573861 430867626 759147722 861735252 1138721583 1518295444 2277443166 2657017027 4554886332 5314034054 7971051081 10628068108 15942102162 31884204324