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68263607 = 181377147
BaseRepresentation
bin1000001000110…
…01111010110111
311202110011001202
410010121322313
5114433413412
610435043115
71456142156
oct404317267
9152404052
1068263607
1135595505
121aa4049b
13111b1389
1490cd59d
155ed63c2
hex4119eb7

68263607 has 4 divisors (see below), whose sum is σ = 68640936. Its totient is φ = 67886280.

The previous prime is 68263571. The next prime is 68263633. The reversal of 68263607 is 70636286.

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 68263607 - 26 = 68263543 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 (68263207) 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, 188393 + ... + 188754.

It is an arithmetic number, because the mean of its divisors is an integer number (17160234).

Almost surely, 268263607 is an apocalyptic number.

68263607 is a deficient number, since it is larger than the sum of its proper divisors (377329).

68263607 is a wasteful number, since it uses less digits than its factorization.

68263607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377328.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 68263607 is about 8262.1793129900. The cubic root of 68263607 is about 408.6922579889.

The spelling of 68263607 in words is "sixty-eight million, two hundred sixty-three thousand, six hundred seven".

Divisors: 1 181 377147 68263607