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1485309 = 3770729
BaseRepresentation
bin101101010100111111101
32210110110110
411222213331
5340012214
651500233
715424230
oct5524775
92713413
101485309
11924a31
125b7679
134000a7
142a9417
151e5159
hex16a9fd

1485309 has 8 divisors (see below), whose sum is σ = 2263360. Its totient is φ = 848736.

The previous prime is 1485277. The next prime is 1485347. The reversal of 1485309 is 9035841.

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

It is not a de Polignac number, because 1485309 - 25 = 1485277 is a prime.

It is a super-2 number, since 2×14853092 = 4412285650962, which contains 22 as substring.

It is a Duffinian number.

1485309 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35344 + ... + 35385.

It is an arithmetic number, because the mean of its divisors is an integer number (282920).

21485309 is an apocalyptic number.

It is an amenable number.

1485309 is a deficient number, since it is larger than the sum of its proper divisors (778051).

1485309 is an equidigital number, since it uses as much as digits as its factorization.

1485309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70739.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1485309 is about 1218.7325383364. The cubic root of 1485309 is about 114.0964864883.

The spelling of 1485309 in words is "one million, four hundred eighty-five thousand, three hundred nine".

Divisors: 1 3 7 21 70729 212187 495103 1485309