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6472985 = 51294597
BaseRepresentation
bin11000101100010100011001
3110011212021012
4120230110121
53124113420
6350423305
7106006451
oct30542431
913155235
106472985
113721282
122201b35
13145838c
14c06d61
1587cdc5
hex62c519

6472985 has 4 divisors (see below), whose sum is σ = 7767588. Its totient is φ = 5178384.

The previous prime is 6472967. The next prime is 6472987. The reversal of 6472985 is 5892746.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5892746 = 22946373.

It can be written as a sum of positive squares in 2 ways, for example, as 4129024 + 2343961 = 2032^2 + 1531^2 .

It is a cyclic number.

It is not a de Polignac number, because 6472985 - 216 = 6407449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6472987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647294 + ... + 647303.

It is an arithmetic number, because the mean of its divisors is an integer number (1941897).

Almost surely, 26472985 is an apocalyptic number.

It is an amenable number.

6472985 is a deficient number, since it is larger than the sum of its proper divisors (1294603).

6472985 is a wasteful number, since it uses less digits than its factorization.

6472985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294602.

The product of its digits is 120960, while the sum is 41.

The square root of 6472985 is about 2544.2061630300. The cubic root of 6472985 is about 186.3666506462.

The spelling of 6472985 in words is "six million, four hundred seventy-two thousand, nine hundred eighty-five".

Divisors: 1 5 1294597 6472985