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31500331441112 = 23471313499182773
BaseRepresentation
bin1110010100110001111100…
…00100001101101111011000
311010112101212020222211221102
413022120332010031233120
513112100134322103422
6150555015200530532
76430552402254332
oct712307604155730
9133471766884842
1031500331441112
11a045240983016
123648b85320a48
131476612411551
147ac8a4a52452
153995e12e3192
hex1ca63e10dbd8

31500331441112 has 64 divisors (see below), whose sum is σ = 60797943360000. Its totient is φ = 15292928027520.

The previous prime is 31500331441099. The next prime is 31500331441121. The reversal of 31500331441112 is 21114413300513.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 172255358 + ... + 172438130.

It is an arithmetic number, because the mean of its divisors is an integer number (949967865000).

Almost surely, 231500331441112 is an apocalyptic number.

It is an amenable number.

31500331441112 is a deficient number, since it is larger than the sum of its proper divisors (29297611918888).

31500331441112 is a wasteful number, since it uses less digits than its factorization.

31500331441112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186456 (or 186452 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 31500331441112 its reverse (21114413300513), we get a palindrome (52614744741625).

The spelling of 31500331441112 in words is "thirty-one trillion, five hundred billion, three hundred thirty-one million, four hundred forty-one thousand, one hundred twelve".

Divisors: 1 2 4 8 47 94 131 188 262 376 524 1048 3499 6157 6998 12314 13996 24628 27992 49256 164453 182773 328906 365546 458369 657812 731092 916738 1315624 1462184 1833476 3666952 8590331 17180662 21543343 23943263 34361324 43086686 47886526 68722648 86173372 95773052 172346744 191546104 639522727 1125333361 1279045454 2250666722 2558090908 4501333444 5116181816 9002666888 30057568169 60115136338 83777477237 120230272676 167554954474 240460545352 335109908948 670219817896 3937541430139 7875082860278 15750165720556 31500331441112