Search a number
-
+
30632224 = 257136751
BaseRepresentation
bin111010011011…
…0100100100000
32010122021111211
41310312210200
530320212344
63012315504
7521240530
oct164664440
963567454
1030632224
1116322497
12a312b94
13646699c
1440d54c0
152a51334
hex1d36920

30632224 has 24 divisors (see below), whose sum is σ = 68923008. Its totient is φ = 13128000.

The previous prime is 30632221. The next prime is 30632233. The reversal of 30632224 is 42223603.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30632195 and 30632204.

It is not an unprimeable number, because it can be changed into a prime (30632221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68152 + ... + 68599.

It is an arithmetic number, because the mean of its divisors is an integer number (2871792).

Almost surely, 230632224 is an apocalyptic number.

It is an amenable number.

30632224 is an abundant number, since it is smaller than the sum of its proper divisors (38290784).

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

30632224 is a wasteful number, since it uses less digits than its factorization.

30632224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136768 (or 136760 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 30632224 is about 5534.6385609180. The cubic root of 30632224 is about 312.8908355751.

Adding to 30632224 its reverse (42223603), we get a palindrome (72855827).

The spelling of 30632224 in words is "thirty million, six hundred thirty-two thousand, two hundred twenty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 136751 273502 547004 957257 1094008 1914514 2188016 3829028 4376032 7658056 15316112 30632224