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30231323232 = 25311101283447
BaseRepresentation
bin11100001001111011…
…010110001001100000
32220000212120100012020
4130021323112021200
5443403204320412
621515454101440
72120106002415
oct341173261140
986025510166
1030231323232
1111903880660
125a384aa880
132b0a298756
14166b06210c
15bbe0be18c
hex709ed6260

30231323232 has 96 divisors (see below), whose sum is σ = 87428968704. Its totient is φ = 9070272000.

The previous prime is 30231323219. The next prime is 30231323249. The reversal of 30231323232 is 23232313203.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35068 + ... + 248379.

It is an arithmetic number, because the mean of its divisors is an integer number (910718424).

Almost surely, 230231323232 is an apocalyptic number.

30231323232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30231323232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43714484352).

30231323232 is an abundant number, since it is smaller than the sum of its proper divisors (57197645472).

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

30231323232 is a wasteful number, since it uses less digits than its factorization.

30231323232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283572 (or 283564 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 30231323232 its reverse (23232313203), we get a palindrome (53463636435).

The spelling of 30231323232 in words is "thirty billion, two hundred thirty-one million, three hundred twenty-three thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 101 132 176 202 264 303 352 404 528 606 808 1056 1111 1212 1616 2222 2424 3232 3333 4444 4848 6666 8888 9696 13332 17776 26664 35552 53328 106656 283447 566894 850341 1133788 1700682 2267576 3117917 3401364 4535152 6235834 6802728 9070304 9353751 12471668 13605456 18707502 24943336 27210912 28628147 37415004 49886672 57256294 74830008 85884441 99773344 114512588 149660016 171768882 229025176 299320032 314909617 343537764 458050352 629819234 687075528 916100704 944728851 1259638468 1374151056 1889457702 2519276936 2748302112 3778915404 5038553872 7557830808 10077107744 15115661616 30231323232