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13144434 = 2317314157
BaseRepresentation
bin110010001001…
…000101110010
3220201210202220
4302021011302
511331110214
61145421510
7216503652
oct62110562
926653686
1013144434
117468676
12449a896
132952b94
141a62362
1512499a9
hexc89172

13144434 has 32 divisors (see below), whose sum is σ = 28740096. Its totient is φ = 3989760.

The previous prime is 13144423. The next prime is 13144459. The reversal of 13144434 is 43444131.

It is a super-2 number, since 2×131444342 = 345552290360712, which contains 22 as substring.

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, 1084 + ... + 5240.

It is an arithmetic number, because the mean of its divisors is an integer number (898128).

Almost surely, 213144434 is an apocalyptic number.

13144434 is an abundant number, since it is smaller than the sum of its proper divisors (15595662).

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

13144434 is a wasteful number, since it uses less digits than its factorization.

13144434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210.

The product of its digits is 2304, while the sum is 24.

The square root of 13144434 is about 3625.5253412437. The cubic root of 13144434 is about 236.0010653021.

Adding to 13144434 its reverse (43444131), we get a palindrome (56588565).

The spelling of 13144434 in words is "thirteen million, one hundred forty-four thousand, four hundred thirty-four".

Divisors: 1 2 3 6 17 31 34 51 62 93 102 186 527 1054 1581 3162 4157 8314 12471 24942 70669 128867 141338 212007 257734 386601 424014 773202 2190739 4381478 6572217 13144434