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1438150232 = 23179768779
BaseRepresentation
bin101010110111000…
…0110111001011000
310201020010121020102
41111232012321120
510421131301412
6354412314532
750432034551
oct12556067130
93636117212
101438150232
11678886612
12341772a48
1319bc4838c
14d9003328
15863cd8c2
hex55b86e58

1438150232 has 8 divisors (see below), whose sum is σ = 2696531700. Its totient is φ = 719075112.

The previous prime is 1438150229. The next prime is 1438150237. The reversal of 1438150232 is 2320518341.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1438150195 and 1438150204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438150237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89884382 + ... + 89884397.

Almost surely, 21438150232 is an apocalyptic number.

It is an amenable number.

1438150232 is a deficient number, since it is larger than the sum of its proper divisors (1258381468).

1438150232 is a wasteful number, since it uses less digits than its factorization.

1438150232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179768785 (or 179768781 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1438150232 is about 37922.9512564621. The cubic root of 1438150232 is about 1128.7595001545.

Adding to 1438150232 its reverse (2320518341), we get a palindrome (3758668573).

The spelling of 1438150232 in words is "one billion, four hundred thirty-eight million, one hundred fifty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 179768779 359537558 719075116 1438150232