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68104415492398 = 2733113851389483
BaseRepresentation
bin11110111110000110010110…
…11111100011100100101110
322221010201101210221111221201
433133003023133203210232
532411310320331224043
6400502423032520114
720226244622125105
oct1737031337434456
9287121353844851
1068104415492398
111a777a1408120a
12777b112b5003a
132c002ac9aa87c
1412b63b262503c
157d18436ebc4d
hex3df0cb7e392e

68104415492398 has 32 divisors (see below), whose sum is σ = 103916250577152. Its totient is φ = 33468967224000.

The previous prime is 68104415492371. The next prime is 68104415492417. The reversal of 68104415492398 is 89329451440186.

It is a super-2 number, since 2×681044154923982 (a number of 28 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 15 ways as a sum of consecutive naturals, for example, 174663765 + ... + 175053247.

It is an arithmetic number, because the mean of its divisors is an integer number (3247382830536).

Almost surely, 268104415492398 is an apocalyptic number.

68104415492398 is a deficient number, since it is larger than the sum of its proper divisors (35811835084754).

68104415492398 is a wasteful number, since it uses less digits than its factorization.

68104415492398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393720.

The product of its (nonzero) digits is 59719680, while the sum is 64.

The spelling of 68104415492398 in words is "sixty-eight trillion, one hundred four billion, four hundred fifteen million, four hundred ninety-two thousand, three hundred ninety-eight".

Divisors: 1 2 73 146 311 622 3851 7702 22703 45406 281123 389483 562246 778966 1197661 2395322 28432259 56864518 87429253 121129213 174858506 242258426 1499899033 2999798066 8842432549 17684865098 109492629409 218985258818 466468599263 932937198526 34052207746199 68104415492398