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28637850052000 = 255371022780359
BaseRepresentation
bin1101000001011110001001…
…11000010010010110100000
310202101202022000020211022001
412200233010320102112200
512223200304103131000
6140524014030253344
76014005423023040
oct640570470222640
9122352260224261
1028637850052000
119141275849082
12326625a057254
1312c96cb35c267
147101179bd720
15349e09a1e46a
hex1a0bc4e125a0

28637850052000 has 96 divisors (see below), whose sum is σ = 80415083024640. Its totient is φ = 9818691436800.

The previous prime is 28637850051989. The next prime is 28637850052027. The reversal of 28637850052000 is 25005873682.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511362180 + ... + 511418179.

It is an arithmetic number, because the mean of its divisors is an integer number (837657114840).

Almost surely, 228637850052000 is an apocalyptic number.

28637850052000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28637850052000 is an abundant number, since it is smaller than the sum of its proper divisors (51777232972640).

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

28637850052000 is a wasteful number, since it uses less digits than its factorization.

28637850052000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022780391 (or 1022780373 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 28637850052000 in words is "twenty-eight trillion, six hundred thirty-seven billion, eight hundred fifty million, fifty-two thousand".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 70 80 100 112 125 140 160 175 200 224 250 280 350 400 500 560 700 800 875 1000 1120 1400 1750 2000 2800 3500 4000 5600 7000 14000 28000 1022780359 2045560718 4091121436 5113901795 7159462513 8182242872 10227803590 14318925026 16364485744 20455607180 25569508975 28637850052 32728971488 35797312565 40911214360 51139017950 57275700104 71594625130 81822428720 102278035900 114551400208 127847544875 143189250260 163644857440 178986562825 204556071800 229102800416 255695089750 286378500520 357973125650 409112143600 511390179500 572757001040 715946251300 818224287200 894932814125 1022780359000 1145514002080 1431892502600 1789865628250 2045560718000 2863785005200 3579731256500 4091121436000 5727570010400 7159462513000 14318925026000 28637850052000