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68235065823 = 360127378283
BaseRepresentation
bin111111100011001000…
…000111100111011111
320112010102022111100010
4333203020013213133
52104221134101243
651202522134303
74633633326651
oct774310074737
9215112274303
1068235065823
1126a35a08991
1211283951393
1365858b42c2
14343446a6d1
151b956d2433
hexfe32079df

68235065823 has 8 divisors (see below), whose sum is σ = 90981841408. Its totient is φ = 45489167064.

The previous prime is 68235065797. The next prime is 68235065831. The reversal of 68235065823 is 32856053286.

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

It is not a de Polignac number, because 68235065823 - 25 = 68235065791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68235065863) 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, 8761 + ... + 369522.

It is an arithmetic number, because the mean of its divisors is an integer number (11372730176).

Almost surely, 268235065823 is an apocalyptic number.

68235065823 is a deficient number, since it is larger than the sum of its proper divisors (22746775585).

68235065823 is a wasteful number, since it uses less digits than its factorization.

68235065823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438413.

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 68235065823 in words is "sixty-eight billion, two hundred thirty-five million, sixty-five thousand, eight hundred twenty-three".

Divisors: 1 3 60127 180381 378283 1134849 22745021941 68235065823