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30126265 = 5133114951
BaseRepresentation
bin111001011101…
…1000010111001
32002200120110121
41302323002321
530203020030
62553413241
7514032451
oct162730271
962616417
1030126265
1116007344
12a10a221
13631a5c0
144002d61
1529a147a
hex1cbb0b9

30126265 has 16 divisors (see below), whose sum is σ = 40190976. Its totient is φ = 21528000.

The previous prime is 30126247. The next prime is 30126269. The reversal of 30126265 is 56262103.

It is not a de Polignac number, because 30126265 - 27 = 30126137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30126269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5461 + ... + 9490.

It is an arithmetic number, because the mean of its divisors is an integer number (2511936).

Almost surely, 230126265 is an apocalyptic number.

It is an amenable number.

30126265 is a deficient number, since it is larger than the sum of its proper divisors (10064711).

30126265 is a wasteful number, since it uses less digits than its factorization.

30126265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15000.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 30126265 is about 5488.7398371575. The cubic root of 30126265 is about 311.1585678976.

Adding to 30126265 its reverse (56262103), we get a palindrome (86388368).

The spelling of 30126265 in words is "thirty million, one hundred twenty-six thousand, two hundred sixty-five".

Divisors: 1 5 13 31 65 155 403 2015 14951 74755 194363 463481 971815 2317405 6025253 30126265