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30507264 = 283213241
BaseRepresentation
bin111010001100…
…0000100000000
32010101221002200
41310120010000
530302213024
63005513200
7520210314
oct164300400
963357080
1030507264
1116247617
12a272800
136421b48
1440a1b44
152a292c9
hex1d18100

30507264 has 54 divisors (see below), whose sum is σ = 87966606. Its totient is φ = 10168320.

The previous prime is 30507263. The next prime is 30507271. The reversal of 30507264 is 46270503.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30470400 + 36864 = 5520^2 + 192^2 .

It is a super-3 number, since 3×305072643 (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30507263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4317 + ... + 8924.

Almost surely, 230507264 is an apocalyptic number.

It is an amenable number.

30507264 is an abundant number, since it is smaller than the sum of its proper divisors (57459342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30507264 is a wasteful number, since it uses less digits than its factorization.

30507264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13263 (or 13246 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 30507264 is about 5523.3381211003. The cubic root of 30507264 is about 312.4647904864.

Adding to 30507264 its reverse (46270503), we get a palindrome (76777767).

The spelling of 30507264 in words is "thirty million, five hundred seven thousand, two hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 576 768 1152 2304 13241 26482 39723 52964 79446 105928 119169 158892 211856 238338 317784 423712 476676 635568 847424 953352 1271136 1694848 1906704 2542272 3389696 3813408 5084544 7626816 10169088 15253632 30507264