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30211311211312 = 2471127788527683
BaseRepresentation
bin1101101111010000111100…
…11110010001001100110000
310221222011200020000111212211
412313220132132101030300
512424440231132230222
6144130515035501504
76235460312141530
oct667503636211460
9127864606014784
1030211311211312
1196985aa631780
12347b1a2bb7894
1313b1bb6caa86a
147663417cd4c0
15375ceb2b3277
hex1b7a1e791330

30211311211312 has 80 divisors (see below), whose sum is σ = 73241431748352. Its totient is φ = 11728147311360.

The previous prime is 30211311211297. The next prime is 30211311211321. The reversal of 30211311211312 is 21311211311203.

It is a super-2 number, since 2×302113112113122 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 43922578 + ... + 44605105.

Almost surely, 230211311211312 is an apocalyptic number.

It is an amenable number.

30211311211312 is an abundant number, since it is smaller than the sum of its proper divisors (43030120537040).

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

30211311211312 is a wasteful number, since it uses less digits than its factorization.

30211311211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88527986 (or 88527980 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 30211311211312 its reverse (21311211311203), we get a palindrome (51522522522515).

The spelling of 30211311211312 in words is "thirty trillion, two hundred eleven billion, three hundred eleven million, two hundred eleven thousand, three hundred twelve".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 56 77 88 112 154 176 277 308 554 616 1108 1232 1939 2216 3047 3878 4432 6094 7756 12188 15512 21329 24376 31024 42658 48752 85316 170632 341264 88527683 177055366 354110732 619693781 708221464 973804513 1239387562 1416442928 1947609026 2478775124 3895218052 4957550248 6816631591 7790436104 9915100496 13633263182 15580872208 24522168191 27266526364 49044336382 54533052728 98088672764 109066105456 171655177337 196177345528 269743850101 343310354674 392354691056 539487700202 686620709348 1078975400404 1373241418696 1888206950707 2157950800808 2746482837392 3776413901414 4315901601616 7552827802828 15105655605656 30211311211312