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1243124324 = 22131929431009
BaseRepresentation
bin100101000011000…
…1001001001100100
310012122011020222122
41022012021021210
510021214434244
6323204245112
742543245111
oct11206111144
93178136878
101243124324
11588790782
122a83a0798
1316a713130
14bb157908
15742081ee
hex4a189264

1243124324 has 96 divisors (see below), whose sum is σ = 2613072000. Its totient is φ = 512096256.

The previous prime is 1243124293. The next prime is 1243124327. The reversal of 1243124324 is 4234213421.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 1243124293 and 1243124302.

It is not an unprimeable number, because it can be changed into a prime (1243124327) 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 31 ways as a sum of consecutive naturals, for example, 1231532 + ... + 1232540.

It is an arithmetic number, because the mean of its divisors is an integer number (27219500).

Almost surely, 21243124324 is an apocalyptic number.

It is an amenable number.

1243124324 is an abundant number, since it is smaller than the sum of its proper divisors (1369947676).

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

1243124324 is a wasteful number, since it uses less digits than its factorization.

1243124324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117 (or 1115 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 1243124324 is about 35257.9682341453. The cubic root of 1243124324 is about 1075.2386198974.

Adding to 1243124324 its reverse (4234213421), we get a palindrome (5477337745).

The spelling of 1243124324 in words is "one billion, two hundred forty-three million, one hundred twenty-four thousand, three hundred twenty-four".

Divisors: 1 2 4 13 19 26 29 38 43 52 58 76 86 116 172 247 377 494 551 559 754 817 988 1009 1102 1118 1247 1508 1634 2018 2204 2236 2494 3268 4036 4988 7163 10621 13117 14326 16211 19171 21242 23693 26234 28652 29261 32422 38342 42484 43387 47386 52468 58522 64844 76684 86774 94772 117044 173548 249223 308009 380393 498446 555959 564031 616018 760786 824353 996892 1111918 1128062 1232036 1258223 1521572 1648706 2223836 2256124 2516446 3297412 5032892 7227467 10716589 14454934 16356899 21433178 23906237 28909868 32713798 42866356 47812474 65427596 95624948 310781081 621562162 1243124324