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68338277 = 79762611
BaseRepresentation
bin1000001001011…
…00001001100101
311202120221111022
410010230021211
5114443311102
610440420525
71456602650
oct404541145
9152527438
1068338277
1135636617
121aa77745
1311209367
14910c897
155eed5a2
hex412c265

68338277 has 4 divisors (see below), whose sum is σ = 78100896. Its totient is φ = 58575660.

The previous prime is 68338271. The next prime is 68338301. The reversal of 68338277 is 77283386.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77283386 = 238641693.

It is a cyclic number.

It is not a de Polignac number, because 68338277 - 218 = 68076133 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 (68338271) 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, 4881299 + ... + 4881312.

It is an arithmetic number, because the mean of its divisors is an integer number (19525224).

Almost surely, 268338277 is an apocalyptic number.

It is an amenable number.

68338277 is a deficient number, since it is larger than the sum of its proper divisors (9762619).

68338277 is an equidigital number, since it uses as much as digits as its factorization.

68338277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9762618.

The product of its digits is 338688, while the sum is 44.

The square root of 68338277 is about 8266.6968615040. The cubic root of 68338277 is about 408.8412194048.

The spelling of 68338277 in words is "sixty-eight million, three hundred thirty-eight thousand, two hundred seventy-seven".

Divisors: 1 7 9762611 68338277