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68349188350 = 25247109726513
BaseRepresentation
bin111111101001111011…
…011101100011111110
320112102101001112000101
4333221323131203332
52104434343011400
651222120151314
74636520341462
oct775173354376
9215371045011
1068349188350
1126a94375923
12112b600853a
1365a3430c21
1434456964a2
151ba072656a
hexfe9edd8fe

68349188350 has 48 divisors (see below), whose sum is σ = 129957628608. Its totient is φ = 26732579840.

The previous prime is 68349188333. The next prime is 68349188353. The reversal of 68349188350 is 5388194386.

It is a super-2 number, since 2×683491883502 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68349188291 and 68349188300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68349188353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2564694 + ... + 2591206.

It is an arithmetic number, because the mean of its divisors is an integer number (2707450596).

Almost surely, 268349188350 is an apocalyptic number.

68349188350 is a deficient number, since it is larger than the sum of its proper divisors (61608440258).

68349188350 is a wasteful number, since it uses less digits than its factorization.

68349188350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27669 (or 27664 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 68349188350 in words is "sixty-eight billion, three hundred forty-nine million, one hundred eighty-eight thousand, three hundred fifty".

Divisors: 1 2 5 10 25 47 50 94 235 470 1097 1175 2194 2350 5485 10970 26513 27425 51559 53026 54850 103118 132565 257795 265130 515590 662825 1246111 1288975 1325650 2492222 2577950 6230555 12461110 29084761 31152775 58169522 62305550 145423805 290847610 727119025 1366983767 1454238050 2733967534 6834918835 13669837670 34174594175 68349188350