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68250683847 = 385726546357
BaseRepresentation
bin111111100100000011…
…101100100111000111
320112011111200222020110
4333210003230213013
52104234133340342
651204241004103
74634213145363
oct774403544707
9215144628213
1068250683847
1126a43805a45
1211289023633
136588bc2038
1434365742a3
151b96c69c9c
hexfe40ec9c7

68250683847 has 8 divisors (see below), whose sum is σ = 91107100656. Its totient is φ = 45447361472.

The previous prime is 68250683843. The next prime is 68250683899. The reversal of 68250683847 is 74838605286.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68250683847 - 22 = 68250683843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68250683843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13270608 + ... + 13275749.

It is an arithmetic number, because the mean of its divisors is an integer number (11388387582).

Almost surely, 268250683847 is an apocalyptic number.

68250683847 is a deficient number, since it is larger than the sum of its proper divisors (22856416809).

68250683847 is a wasteful number, since it uses less digits than its factorization.

68250683847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26547217.

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 68250683847 in words is "sixty-eight billion, two hundred fifty million, six hundred eighty-three thousand, eight hundred forty-seven".

Divisors: 1 3 857 2571 26546357 79639071 22750227949 68250683847