Search a number
-
+
30011232 = 253312617
BaseRepresentation
bin111001001111…
…0111101100000
32002110201200010
41302132331200
530140324412
62551124520
7513043206
oct162367540
962421603
1030011232
1115a38979
12a073740
1362aa134
143db3076
15297c33c
hex1c9ef60

30011232 has 24 divisors (see below), whose sum is σ = 78779736. Its totient is φ = 10003712.

The previous prime is 30011161. The next prime is 30011269. The reversal of 30011232 is 23211003.

Adding to 30011232 its reverse (23211003), we get a palindrome (53222235).

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156213 + ... + 156404.

It is an arithmetic number, because the mean of its divisors is an integer number (3282489).

Almost surely, 230011232 is an apocalyptic number.

30011232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30011232 is an abundant number, since it is smaller than the sum of its proper divisors (48768504).

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

30011232 is a wasteful number, since it uses less digits than its factorization.

30011232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312630 (or 312622 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30011232 is about 5478.2508157258. The cubic root of 30011232 is about 310.7620240185.

The spelling of 30011232 in words is "thirty million, eleven thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 312617 625234 937851 1250468 1875702 2500936 3751404 5001872 7502808 10003744 15005616 30011232