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68962755 = 3531433449
BaseRepresentation
bin1000001110001…
…00100111000011
311210202200010010
410013010213003
5120123302010
610502040003
71465113411
oct407044703
9153680103
1068962755
1135a22814
121b119003
1311397684
1492322b1
1560c3620
hex41c49c3

68962755 has 32 divisors (see below), whose sum is σ = 116582400. Its totient is φ = 34755840.

The previous prime is 68962753. The next prime is 68962759. The reversal of 68962755 is 55726986.

It is a happy number.

It is not a de Polignac number, because 68962755 - 21 = 68962753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68962753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18271 + ... + 21719.

It is an arithmetic number, because the mean of its divisors is an integer number (3643200).

Almost surely, 268962755 is an apocalyptic number.

68962755 is a deficient number, since it is larger than the sum of its proper divisors (47619645).

68962755 is a wasteful number, since it uses less digits than its factorization.

68962755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531.

The product of its digits is 907200, while the sum is 48.

The square root of 68962755 is about 8304.3816747546. The cubic root of 68962755 is about 410.0827812226.

The spelling of 68962755 in words is "sixty-eight million, nine hundred sixty-two thousand, seven hundred fifty-five".

Divisors: 1 3 5 15 31 43 93 129 155 215 465 645 1333 3449 3999 6665 10347 17245 19995 51735 106919 148307 320757 444921 534595 741535 1603785 2224605 4597517 13792551 22987585 68962755