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68426413 = 111671932
BaseRepresentation
bin1000001010000…
…01101010101101
311202202102101121
410011001222231
5120004121123
610442340541
71460420626
oct405015255
9152672347
1068426413
1135696860
121aaba751
131123a503
149132a4d
15601975d
hex4141aad

68426413 has 12 divisors (see below), whose sum is σ = 75485088. Its totient is φ = 61512960.

The previous prime is 68426401. The next prime is 68426441. The reversal of 68426413 is 31462486.

It is not a de Polignac number, because 68426413 - 25 = 68426381 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 (68426443) 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 11 ways as a sum of consecutive naturals, for example, 354445 + ... + 354637.

It is an arithmetic number, because the mean of its divisors is an integer number (6290424).

Almost surely, 268426413 is an apocalyptic number.

It is an amenable number.

68426413 is a deficient number, since it is larger than the sum of its proper divisors (7058675).

68426413 is a wasteful number, since it uses less digits than its factorization.

68426413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 371 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 68426413 is about 8272.0259308104. The cubic root of 68426413 is about 409.0169049869.

Adding to 68426413 its reverse (31462486), we get a palindrome (99888899).

The spelling of 68426413 in words is "sixty-eight million, four hundred twenty-six thousand, four hundred thirteen".

Divisors: 1 11 167 193 1837 2123 32231 37249 354541 409739 6220583 68426413