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68294619 = 3247161453
BaseRepresentation
bin1000001001000…
…01011111011011
311202111201121100
410010201133123
5114440411434
610435442443
71456331451
oct404413733
9152451540
1068294619
1135606838
121aa56423
13111c2523
1490da9d1
155ee0699
hex41217db

68294619 has 12 divisors (see below), whose sum is σ = 100747296. Its totient is φ = 44560752.

The previous prime is 68294617. The next prime is 68294647. The reversal of 68294619 is 91649286.

It is a happy number.

68294619 is a `hidden beast` number, since 6 + 8 + 29 + 4 + 619 = 666.

It is not a de Polignac number, because 68294619 - 21 = 68294617 is a prime.

It is a super-2 number, since 2×682946192 = 9328309968710322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68294617) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 80304 + ... + 81149.

It is an arithmetic number, because the mean of its divisors is an integer number (8395608).

Almost surely, 268294619 is an apocalyptic number.

68294619 is a deficient number, since it is larger than the sum of its proper divisors (32452677).

68294619 is a wasteful number, since it uses less digits than its factorization.

68294619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161506 (or 161503 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 68294619 is about 8264.0558444386. The cubic root of 68294619 is about 408.7541379375.

The spelling of 68294619 in words is "sixty-eight million, two hundred ninety-four thousand, six hundred nineteen".

Divisors: 1 3 9 47 141 423 161453 484359 1453077 7588291 22764873 68294619