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68356630 = 256835663
BaseRepresentation
bin1000001001100…
…00101000010110
311202121212200001
410010300220112
5114444403010
610441041514
71460010316
oct404605026
9152555601
1068356630
1135649391
121aa8629a
1311214814
149115446
156003c3a
hex4130a16

68356630 has 8 divisors (see below), whose sum is σ = 123041952. Its totient is φ = 27342648.

The previous prime is 68356601. The next prime is 68356637. The reversal of 68356630 is 3665386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 68356630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68356637) 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, 3417822 + ... + 3417841.

It is an arithmetic number, because the mean of its divisors is an integer number (15380244).

Almost surely, 268356630 is an apocalyptic number.

68356630 is a deficient number, since it is larger than the sum of its proper divisors (54685322).

68356630 is a wasteful number, since it uses less digits than its factorization.

68356630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835670.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 68356630 is about 8267.8068434138. The cubic root of 68356630 is about 408.8778157391.

It can be divided in two parts, 68356 and 630, that added together give a palindrome (68986).

The spelling of 68356630 in words is "sixty-eight million, three hundred fifty-six thousand, six hundred thirty".

Divisors: 1 2 5 10 6835663 13671326 34178315 68356630