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31124441204 = 228422392387
BaseRepresentation
bin11100111111001010…
…010100100001110100
32222100010010102201122
4130333022110201310
51002220324104304
622144240443112
72151202246043
oct347712244164
988303112648
1031124441204
1112221a3238a
126047619498
132c2032281c
14171390a55a
15c226db9be
hex73f294874

31124441204 has 12 divisors (see below), whose sum is σ = 54469008384. Its totient is φ = 15561867384.

The previous prime is 31124441189. The next prime is 31124441209. The reversal of 31124441204 is 40214442113.

It is a super-2 number, since 2×311244412042 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31124441209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290699 + ... + 383085.

It is an arithmetic number, because the mean of its divisors is an integer number (4539084032).

Almost surely, 231124441204 is an apocalyptic number.

It is an amenable number.

31124441204 is a deficient number, since it is larger than the sum of its proper divisors (23344567180).

31124441204 is a wasteful number, since it uses less digits than its factorization.

31124441204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176614 (or 176612 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 31124441204 its reverse (40214442113), we get a palindrome (71338883317).

Subtracting 31124441204 from its reverse (40214442113), we obtain a palindrome (9090000909).

The spelling of 31124441204 in words is "thirty-one billion, one hundred twenty-four million, four hundred forty-one thousand, two hundred four".

Divisors: 1 2 4 84223 92387 168446 184774 336892 369548 7781110301 15562220602 31124441204