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68761622 = 234380811
BaseRepresentation
bin1000001100100…
…11100000010110
311210101110012202
410012103200112
5120100332442
610453444502
71463315126
oct406234026
9153343182
1068761622
11358a5696
121b040732
1311326c67
1491bcc86
156083c32
hex4193816

68761622 has 4 divisors (see below), whose sum is σ = 103142436. Its totient is φ = 34380810.

The previous prime is 68761621. The next prime is 68761657. The reversal of 68761622 is 22616786.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22616786 = 211308393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68761621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17190404 + ... + 17190407.

It is an arithmetic number, because the mean of its divisors is an integer number (25785609).

Almost surely, 268761622 is an apocalyptic number.

68761622 is a deficient number, since it is larger than the sum of its proper divisors (34380814).

68761622 is a wasteful number, since it uses less digits than its factorization.

68761622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34380813.

The product of its digits is 48384, while the sum is 38.

The square root of 68761622 is about 8292.2627792419. The cubic root of 68761622 is about 409.6837180041.

The spelling of 68761622 in words is "sixty-eight million, seven hundred sixty-one thousand, six hundred twenty-two".

Divisors: 1 2 34380811 68761622