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13428252144 = 2433315318919
BaseRepresentation
bin11001000000110001…
…01101110111110000
31021122211121212222000
430200120231313300
5210000113032034
610100250014000
7653523155106
oct144030556760
937584555860
1013428252144
11577099764a
122729117300
131360025838
149155a5c76
15538d46599
hex32062ddf0

13428252144 has 160 divisors (see below), whose sum is σ = 40540262400. Its totient is φ = 4249739520.

The previous prime is 13428252139. The next prime is 13428252199. The reversal of 13428252144 is 44125282431.

13428252144 is a `hidden beast` number, since 13 + 4 + 2 + 82 + 521 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13428252099 and 13428252108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 700317 + ... + 719235.

It is an arithmetic number, because the mean of its divisors is an integer number (253376640).

Almost surely, 213428252144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13428252144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20270131200).

13428252144 is an abundant number, since it is smaller than the sum of its proper divisors (27112010256).

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

13428252144 is a wasteful number, since it uses less digits than its factorization.

13428252144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19020 (or 19008 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The spelling of 13428252144 in words is "thirteen billion, four hundred twenty-eight million, two hundred fifty-two thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 31 36 48 53 54 62 72 93 106 108 124 144 159 186 212 216 248 279 318 372 424 432 477 496 558 636 744 837 848 954 1116 1272 1431 1488 1643 1674 1908 2232 2544 2862 3286 3348 3816 4464 4929 5724 6572 6696 7632 9858 11448 13144 13392 14787 18919 19716 22896 26288 29574 37838 39432 44361 56757 59148 75676 78864 88722 113514 118296 151352 170271 177444 227028 236592 302704 340542 354888 454056 510813 586489 681084 709776 908112 1002707 1021626 1172978 1362168 1759467 2005414 2043252 2345956 2724336 3008121 3518934 4010828 4086504 4691912 5278401 6016242 7037868 8021656 8173008 9024363 9383824 10556802 12032484 14075736 15835203 16043312 18048726 21113604 24064968 27073089 28151472 31083917 31670406 36097452 42227208 48129936 54146178 62167834 63340812 72194904 84454416 93251751 108292356 124335668 126681624 144389808 186503502 216584712 248671336 253363248 279755253 373007004 433169424 497342672 559510506 746014008 839265759 1119021012 1492028016 1678531518 2238042024 3357063036 4476084048 6714126072 13428252144