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68375093 = 373918287
BaseRepresentation
bin1000001001101…
…01001000110101
311202122210222212
410010311020311
5120001000333
610441303205
71460115203
oct404651065
9152583885
1068375093
1135661246
121aa94b05
1311220047
14911c073
156009448
hex4135235

68375093 has 4 divisors (see below), whose sum is σ = 68397120. Its totient is φ = 68353068.

The previous prime is 68375063. The next prime is 68375101. The reversal of 68375093 is 39057386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68375093 - 26 = 68375029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68375093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68375063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5405 + ... + 12882.

It is an arithmetic number, because the mean of its divisors is an integer number (17099280).

Almost surely, 268375093 is an apocalyptic number.

It is an amenable number.

68375093 is a deficient number, since it is larger than the sum of its proper divisors (22027).

68375093 is a wasteful number, since it uses less digits than its factorization.

68375093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22026.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 68375093 is about 8268.9233277374. The cubic root of 68375093 is about 408.9146248072.

The spelling of 68375093 in words is "sixty-eight million, three hundred seventy-five thousand, ninety-three".

Divisors: 1 3739 18287 68375093