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30188413255 = 57111317477549
BaseRepresentation
bin11100000111010111…
…101010000101000111
32212220212211021202211
4130013113222011013
5443311213211010
621511322244251
72116045164430
oct340727520507
985825737684
1030188413255
1111891632770
125a26056687
132b01423530
141665492487
15bba44508a
hex7075ea147

30188413255 has 128 divisors (see below), whose sum is σ = 52603084800. Its totient is φ = 15999344640.

The previous prime is 30188413237. The next prime is 30188413271. The reversal of 30188413255 is 55231488103.

It is not a de Polignac number, because 30188413255 - 231 = 28040929607 is a prime.

It is a super-2 number, since 2×301884132552 (a number of 22 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 127 ways as a sum of consecutive naturals, for example, 3995221 + ... + 4002769.

It is an arithmetic number, because the mean of its divisors is an integer number (410961600).

Almost surely, 230188413255 is an apocalyptic number.

30188413255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30188413255 is a deficient number, since it is larger than the sum of its proper divisors (22414671545).

30188413255 is a wasteful number, since it uses less digits than its factorization.

30188413255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7649.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 30188413255 in words is "thirty billion, one hundred eighty-eight million, four hundred thirteen thousand, two hundred fifty-five".

Divisors: 1 5 7 11 13 17 35 47 55 65 77 85 91 119 143 187 221 235 329 385 455 517 595 611 715 799 935 1001 1105 1309 1547 1645 2431 2585 3055 3619 3995 4277 5005 5593 6545 6721 7549 7735 8789 10387 12155 17017 18095 21385 27965 33605 37745 43945 47047 51935 52843 61523 72709 83039 85085 98137 114257 128333 235235 264215 307615 354803 363545 415195 490685 571285 581273 641665 686959 799799 898331 1079507 1411663 1668329 1774015 2483621 2906365 3434795 3902833 3998995 4491655 4612439 5397535 6031651 7058315 7556549 8341645 9881641 11678303 12418105 18351619 19514165 23062195 27319831 30158255 32287073 37782745 42221557 49408205 50736829 58391515 66348161 78411463 91758095 128461333 136599155 161435365 211107785 253684145 331740805 355157803 392057315 464437127 548880241 642306665 862526093 1775789015 2322185635 2744401205 4312630465 6037682651 30188413255