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660499034 = 21325403809
BaseRepresentation
bin100111010111100…
…110101001011010
31201000211211100012
4213113212221122
52323041432114
6145312441522
722240102106
oct4727465132
91630754305
10660499034
1130991a778
121652492a2
13a6abba40
1463a14906
153cebd63e
hex275e6a5a

660499034 has 8 divisors (see below), whose sum is σ = 1066960020. Its totient is φ = 304845696.

The previous prime is 660499031. The next prime is 660499061. The reversal of 660499034 is 430994066.

It can be written as a sum of positive squares in 2 ways, for example, as 637411009 + 23088025 = 25247^2 + 4805^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 660498982 and 660499000.

It is not an unprimeable number, because it can be changed into a prime (660499031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12701879 + ... + 12701930.

Almost surely, 2660499034 is an apocalyptic number.

660499034 is a deficient number, since it is larger than the sum of its proper divisors (406460986).

660499034 is a wasteful number, since it uses less digits than its factorization.

660499034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25403824.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 660499034 is about 25700.1757581539. The cubic root of 660499034 is about 870.8781523835.

The spelling of 660499034 in words is "six hundred sixty million, four hundred ninety-nine thousand, thirty-four".

Divisors: 1 2 13 26 25403809 50807618 330249517 660499034