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68429841 = 322809947
BaseRepresentation
bin1000001010000…
…10100000010001
311202202121002120
410011002200101
5120004223331
610442404453
71460433624
oct405024021
9152677076
1068429841
1135699397
121ab00729
131123bc3c
149133dbb
15601a796
hex4142811

68429841 has 4 divisors (see below), whose sum is σ = 91239792. Its totient is φ = 45619892.

The previous prime is 68429833. The next prime is 68429891. The reversal of 68429841 is 14892486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68429841 - 23 = 68429833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68429793 and 68429802.

It is not an unprimeable number, because it can be changed into a prime (68429891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11404971 + ... + 11404976.

It is an arithmetic number, because the mean of its divisors is an integer number (22809948).

Almost surely, 268429841 is an apocalyptic number.

It is an amenable number.

68429841 is a deficient number, since it is larger than the sum of its proper divisors (22809951).

68429841 is a wasteful number, since it uses less digits than its factorization.

68429841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22809950.

The product of its digits is 110592, while the sum is 42.

The square root of 68429841 is about 8272.2331325948. The cubic root of 68429841 is about 409.0237351298.

The spelling of 68429841 in words is "sixty-eight million, four hundred twenty-nine thousand, eight hundred forty-one".

Divisors: 1 3 22809947 68429841