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68370453239 = 1117365617397
BaseRepresentation
bin111111101011001100…
…100101001011110111
320112110212001212221212
4333223030211023313
52110010314000424
651224200032035
74640166156314
oct775314451367
9215425055855
1068370453239
1126aa537a510
121130116261b
1365a7967cba
14344842dd0b
151ba252710e
hexfeb3252f7

68370453239 has 8 divisors (see below), whose sum is σ = 78973357968. Its totient is φ = 58498783360.

The previous prime is 68370453209. The next prime is 68370453241. The reversal of 68370453239 is 93235407386.

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 a de Polignac number, because none of the positive numbers 2k-68370453239 is a prime.

It is a super-2 number, since 2×683704532392 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68370453209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182808512 + ... + 182808885.

It is an arithmetic number, because the mean of its divisors is an integer number (9871669746).

Almost surely, 268370453239 is an apocalyptic number.

68370453239 is a deficient number, since it is larger than the sum of its proper divisors (10602904729).

68370453239 is a wasteful number, since it uses less digits than its factorization.

68370453239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365617425.

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 68370453239 in words is "sixty-eight billion, three hundred seventy million, four hundred fifty-three thousand, two hundred thirty-nine".

Divisors: 1 11 17 187 365617397 4021791367 6215495749 68370453239