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1530131224 = 23712693893
BaseRepresentation
bin101101100110011…
…1111001100011000
310221122012201102211
41123030333030120
511113203144344
6411500004504
752626620656
oct13314771430
93848181384
101530131224
117157a0266
12368530734
131b5011bbb
14107307dd6
158e4ec334
hex5b33f318

1530131224 has 16 divisors (see below), whose sum is σ = 2909405520. Its totient is φ = 754289760.

The previous prime is 1530131219. The next prime is 1530131231. The reversal of 1530131224 is 4221310351.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1530131195 and 1530131204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1346379 + ... + 1347514.

It is an arithmetic number, because the mean of its divisors is an integer number (181837845).

Almost surely, 21530131224 is an apocalyptic number.

It is an amenable number.

1530131224 is a deficient number, since it is larger than the sum of its proper divisors (1379274296).

1530131224 is a wasteful number, since it uses less digits than its factorization.

1530131224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693970 (or 2693966 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1530131224 is about 39116.8917988124. The cubic root of 1530131224 is about 1152.3282946642.

Adding to 1530131224 its reverse (4221310351), we get a palindrome (5751441575).

The spelling of 1530131224 in words is "one billion, five hundred thirty million, one hundred thirty-one thousand, two hundred twenty-four".

Divisors: 1 2 4 8 71 142 284 568 2693893 5387786 10775572 21551144 191266403 382532806 765065612 1530131224