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68023293 = 3131744187
BaseRepresentation
bin1000000110111…
…11001111111101
311201222221102020
410003133033331
5114403221133
610425550353
71454121432
oct403371775
9151887366
1068023293
11354409a8
121a9453b9
1311128b90
149069b89
155e8a0b3
hex40df3fd

68023293 has 8 divisors (see below), whose sum is σ = 97674528. Its totient is φ = 41860464.

The previous prime is 68023289. The next prime is 68023297. The reversal of 68023293 is 39232086.

It is an interprime number because it is at equal distance from previous prime (68023289) and next prime (68023297).

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

It is not a de Polignac number, because 68023293 - 22 = 68023289 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68023297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872055 + ... + 872132.

It is an arithmetic number, because the mean of its divisors is an integer number (12209316).

Almost surely, 268023293 is an apocalyptic number.

It is an amenable number.

68023293 is a deficient number, since it is larger than the sum of its proper divisors (29651235).

68023293 is a wasteful number, since it uses less digits than its factorization.

68023293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744203.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 68023293 is about 8247.6234758869. The cubic root of 68023293 is about 408.2121097695.

The spelling of 68023293 in words is "sixty-eight million, twenty-three thousand, two hundred ninety-three".

Divisors: 1 3 13 39 1744187 5232561 22674431 68023293