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13123044044 = 22112515712081
BaseRepresentation
bin11000011100011000…
…11100001011001100
31020212120022201011022
430032030130023030
5203333444402134
610010104213312
7643126014425
oct141614341314
936776281138
1013123044044
115624686250
122662a6a238
131311a23326
148c6c3864c
1551c15952e
hex30e31c2cc

13123044044 has 48 divisors (see below), whose sum is σ = 25209055872. Its totient is φ = 5928000000.

The previous prime is 13123044017. The next prime is 13123044083. The reversal of 13123044044 is 44044032131.

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, 6305084 + ... + 6307164.

It is an arithmetic number, because the mean of its divisors is an integer number (525188664).

Almost surely, 213123044044 is an apocalyptic number.

It is an amenable number.

13123044044 is a deficient number, since it is larger than the sum of its proper divisors (12086011828).

13123044044 is a wasteful number, since it uses less digits than its factorization.

13123044044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918 (or 2916 counting only the distinct ones).

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

Adding to 13123044044 its reverse (44044032131), we get a palindrome (57167076175).

The spelling of 13123044044 in words is "thirteen billion, one hundred twenty-three million, forty-four thousand, forty-four".

Divisors: 1 2 4 11 22 44 251 502 571 1004 1142 2081 2284 2761 4162 5522 6281 8324 11044 12562 22891 25124 45782 91564 143321 286642 522331 573284 1044662 1188251 1576531 2089324 2376502 3153062 4753004 5745641 6306124 11491282 13070761 22982564 26141522 52283044 298251001 596502002 1193004004 3280761011 6561522022 13123044044