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68370623 = 197347059
BaseRepresentation
bin1000001001101…
…00000010111111
311202122120212022
410010310002333
5120000324443
610441230355
71460066156
oct404640277
9152576768
1068370623
1135658952
121aa923bb
131121acb9
14911a59d
156007e68
hex41340bf

68370623 has 4 divisors (see below), whose sum is σ = 68717880. Its totient is φ = 68023368.

The previous prime is 68370611. The next prime is 68370641. The reversal of 68370623 is 32607386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68370623 - 212 = 68366527 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 (68310623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173333 + ... + 173726.

It is an arithmetic number, because the mean of its divisors is an integer number (17179470).

Almost surely, 268370623 is an apocalyptic number.

68370623 is a deficient number, since it is larger than the sum of its proper divisors (347257).

68370623 is a wasteful number, since it uses less digits than its factorization.

68370623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347256.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 68370623 is about 8268.6530342009. The cubic root of 68370623 is about 408.9057137251.

The spelling of 68370623 in words is "sixty-eight million, three hundred seventy thousand, six hundred twenty-three".

Divisors: 1 197 347059 68370623