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68548690100856 = 23372317740344229
BaseRepresentation
bin11111001011000001111000…
…10100101100001001111000
322222201012011002000000212210
433211200330110230021320
532441100204131211411
6401442500011335120
720303323305030210
oct1745407424541170
9288635132000783
1068548690100856
111a929377557209
1278312417514a0
132c33162b6a484
1412cdaba98d240
157dd196ee7ca6
hex3e583c52c278

68548690100856 has 64 divisors (see below), whose sum is σ = 204368765529600. Its totient is φ = 18733803504768.

The previous prime is 68548690100831. The next prime is 68548690100857. The reversal of 68548690100856 is 65800109684586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68548690100857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8870168251 + ... + 8870175978.

It is an arithmetic number, because the mean of its divisors is an integer number (3193261961400).

Almost surely, 268548690100856 is an apocalyptic number.

It is an amenable number.

68548690100856 is an abundant number, since it is smaller than the sum of its proper divisors (135820075428744).

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

68548690100856 is a wasteful number, since it uses less digits than its factorization.

68548690100856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17740344268 (or 17740344264 counting only the distinct ones).

The product of its (nonzero) digits is 99532800, while the sum is 66.

The spelling of 68548690100856 in words is "sixty-eight trillion, five hundred forty-eight billion, six hundred ninety million, one hundred thousand, eight hundred fifty-six".

Divisors: 1 2 3 4 6 7 8 12 14 21 23 24 28 42 46 56 69 84 92 138 161 168 184 276 322 483 552 644 966 1288 1932 3864 17740344229 35480688458 53221032687 70961376916 106442065374 124182409603 141922753832 212884130748 248364819206 372547228809 408027917267 425768261496 496729638412 745094457618 816055834534 993459276824 1224083751801 1490188915236 1632111669068 2448167503602 2856195420869 2980377830472 3264223338136 4896335007204 5712390841738 8568586262607 9792670014408 11424781683476 17137172525214 22849563366952 34274345050428 68548690100856