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68738635 = 572238807
BaseRepresentation
bin1000001100011…
…01111001001011
311210100021200101
410012031321023
5120044114020
610453150231
71463161120
oct406157113
9153307611
1068738635
113588a399
121b02b377
1311319664
1491b4747
15607c00a
hex418de4b

68738635 has 16 divisors (see below), whose sum is σ = 94703616. Its totient is φ = 46918368.

The previous prime is 68738627. The next prime is 68738641. The reversal of 68738635 is 53683786.

It is not a de Polignac number, because 68738635 - 23 = 68738627 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3402 + ... + 12208.

It is an arithmetic number, because the mean of its divisors is an integer number (5918976).

Almost surely, 268738635 is an apocalyptic number.

68738635 is a deficient number, since it is larger than the sum of its proper divisors (25964981).

68738635 is a wasteful number, since it uses less digits than its factorization.

68738635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9042.

The product of its digits is 725760, while the sum is 46.

The square root of 68738635 is about 8290.8766122769. The cubic root of 68738635 is about 409.6380605139.

The spelling of 68738635 in words is "sixty-eight million, seven hundred thirty-eight thousand, six hundred thirty-five".

Divisors: 1 5 7 35 223 1115 1561 7805 8807 44035 61649 308245 1963961 9819805 13747727 68738635