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614805061 = 13371278181
BaseRepresentation
bin100100101001010…
…010111001000101
31120211212022222211
4210221102321011
52224342230221
6141001223421
721143520403
oct4451227105
91524768884
10614805061
11296050162
12151a91b71
139a4b05a0
145b91c473
1538e946e1
hex24a52e45

614805061 has 8 divisors (see below), whose sum is σ = 679992824. Its totient is φ = 552173760.

The previous prime is 614805049. The next prime is 614805067. The reversal of 614805061 is 160508416.

It can be written as a sum of positive squares in 4 ways, for example, as 72148036 + 542657025 = 8494^2 + 23295^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-614805061 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 (614805067) 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 7 ways as a sum of consecutive naturals, for example, 638610 + ... + 639571.

It is an arithmetic number, because the mean of its divisors is an integer number (84999103).

Almost surely, 2614805061 is an apocalyptic number.

It is an amenable number.

614805061 is a deficient number, since it is larger than the sum of its proper divisors (65187763).

614805061 is a wasteful number, since it uses less digits than its factorization.

614805061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278231.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 614805061 is about 24795.2628741863. The cubic root of 614805061 is about 850.3136378911.

The spelling of 614805061 in words is "six hundred fourteen million, eight hundred five thousand, sixty-one".

Divisors: 1 13 37 481 1278181 16616353 47292697 614805061