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28731443030300 = 22521911504264033
BaseRepresentation
bin1101000100001100011110…
…11101001010100100011100
310202201200212122221202001202
412202012033131022210130
512231213443403432200
6141035013120455032
76023530641145013
oct642061735124434
9122650778852052
1028731443030300
119177a33621a1a
12328041a17a478
1313054956735aa
14714875b5da7a
1534c5865221d5
hex1a218f74a91c

28731443030300 has 36 divisors (see below), whose sum is σ = 62673656712576. Its totient is φ = 11432406643200.

The previous prime is 28731443030263. The next prime is 28731443030327. The reversal of 28731443030300 is 303034413782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752112917 + ... + 752151116.

Almost surely, 228731443030300 is an apocalyptic number.

28731443030300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28731443030300 is an abundant number, since it is smaller than the sum of its proper divisors (33942213682276).

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

28731443030300 is a wasteful number, since it uses less digits than its factorization.

28731443030300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504264238 (or 1504264231 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 28731443030300 in words is "twenty-eight trillion, seven hundred thirty-one billion, four hundred forty-three million, thirty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 191 382 764 955 1910 3820 4775 9550 19100 1504264033 3008528066 6017056132 7521320165 15042640330 30085280660 37606600825 75213201650 150426403300 287314430303 574628860606 1149257721212 1436572151515 2873144303030 5746288606060 7182860757575 14365721515150 28731443030300