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61426443 = 3133494513
BaseRepresentation
bin1110101001010…
…0101100001011
311021120210020110
43222110230023
5111211121233
610032325403
71344054561
oct352245413
9137523213
1061426443
1131745661
12186a3863
13c959310
14822da31
1555d5663
hex3a94b0b

61426443 has 16 divisors (see below), whose sum is σ = 88474400. Its totient is φ = 37684224.

The previous prime is 61426439. The next prime is 61426447. The reversal of 61426443 is 34462416.

61426443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61426439) and next prime (61426447).

It is not a de Polignac number, because 61426443 - 22 = 61426439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61426443.

It is not an unprimeable number, because it can be changed into a prime (61426447) 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 15 ways as a sum of consecutive naturals, for example, 11355 + ... + 15867.

It is an arithmetic number, because the mean of its divisors is an integer number (5529650).

Almost surely, 261426443 is an apocalyptic number.

61426443 is a deficient number, since it is larger than the sum of its proper divisors (27047957).

61426443 is a wasteful number, since it uses less digits than its factorization.

61426443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4878.

The product of its digits is 13824, while the sum is 30.

The square root of 61426443 is about 7837.5023444973. The cubic root of 61426443 is about 394.5649068091.

Adding to 61426443 its reverse (34462416), we get a palindrome (95888859).

The spelling of 61426443 in words is "sixty-one million, four hundred twenty-six thousand, four hundred forty-three".

Divisors: 1 3 13 39 349 1047 4513 4537 13539 13611 58669 176007 1575037 4725111 20475481 61426443