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30500465 = 517358829
BaseRepresentation
bin111010001011…
…0011001110001
32010101120202212
41310112121301
530302003330
63005421505
7520151432
oct164263161
963346685
1030500465
11162424a6
12a26a895
13641ba18
14409d489
152a27295
hex1d16671

30500465 has 8 divisors (see below), whose sum is σ = 38753640. Its totient is φ = 22964992.

The previous prime is 30500443. The next prime is 30500467. The reversal of 30500465 is 56400503.

It can be written as a sum of positive squares in 4 ways, for example, as 15808576 + 14691889 = 3976^2 + 3833^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30500465 - 212 = 30496369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30500465.

It is not an unprimeable number, because it can be changed into a prime (30500467) 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, 179330 + ... + 179499.

It is an arithmetic number, because the mean of its divisors is an integer number (4844205).

Almost surely, 230500465 is an apocalyptic number.

It is an amenable number.

30500465 is a deficient number, since it is larger than the sum of its proper divisors (8253175).

30500465 is a wasteful number, since it uses less digits than its factorization.

30500465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358851.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 30500465 is about 5522.7226075551. The cubic root of 30500465 is about 312.4415762780.

Adding to 30500465 its reverse (56400503), we get a palindrome (86900968).

The spelling of 30500465 in words is "thirty million, five hundred thousand, four hundred sixty-five".

Divisors: 1 5 17 85 358829 1794145 6100093 30500465