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30318226 = 2532291249
BaseRepresentation
bin111001110100…
…1111010010010
32010001022210021
41303221322102
530230140401
63001454054
7515462221
oct163517222
963038707
1030318226
1116128594
12a1a132a
136386aa3
144052cb8
1529dd2a1
hex1ce9e92

30318226 has 16 divisors (see below), whose sum is σ = 46575000. Its totient is φ = 14796288.

The previous prime is 30318203. The next prime is 30318257. The reversal of 30318226 is 62281303.

It can be written as a sum of positive squares in 4 ways, for example, as 30195025 + 123201 = 5495^2 + 351^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30318226.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23650 + ... + 24898.

Almost surely, 230318226 is an apocalyptic number.

30318226 is a deficient number, since it is larger than the sum of its proper divisors (16256774).

30318226 is a wasteful number, since it uses less digits than its factorization.

30318226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 30318226 is about 5506.1988703642. The cubic root of 30318226 is about 311.8180576841.

Adding to 30318226 its reverse (62281303), we get a palindrome (92599529).

The spelling of 30318226 in words is "thirty million, three hundred eighteen thousand, two hundred twenty-six".

Divisors: 1 2 53 106 229 458 1249 2498 12137 24274 66197 132394 286021 572042 15159113 30318226