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215453053140320 = 2551369499832723
BaseRepresentation
bin110000111111010000010010…
…101100101011110101100000
31001020212002222201101120120202
4300333100102230223311200
5211214440323100442240
62042121433300124332
763244653335620622
oct6077202254536540
91036762881346522
10215453053140320
1162717143714836
12201b82b36966a8
13932b19c2887c8
143b2bdaa6a8c12
1519d9665a31315
hexc3f412b2bd60

215453053140320 has 48 divisors (see below), whose sum is σ = 509011606580400. Its totient is φ = 86180583197184.

The previous prime is 215453053140253. The next prime is 215453053140329. The reversal of 215453053140320 is 23041350354512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215453053140329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16995479 + ... + 26828201.

It is an arithmetic number, because the mean of its divisors is an integer number (10604408470425).

Almost surely, 2215453053140320 is an apocalyptic number.

215453053140320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215453053140320 is an abundant number, since it is smaller than the sum of its proper divisors (293558553440080).

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

215453053140320 is a wasteful number, since it uses less digits than its factorization.

215453053140320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9969687 (or 9969679 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 215453053140320 in words is "two hundred fifteen trillion, four hundred fifty-three billion, fifty-three million, one hundred forty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 136949 273898 547796 684745 1095592 1369490 2191184 2738980 4382368 5477960 9832723 10955920 19665446 21911840 39330892 49163615 78661784 98327230 157323568 196654460 314647136 393308920 786617840 1573235680 1346581582127 2693163164254 5386326328508 6732907910635 10772652657016 13465815821270 21545305314032 26931631642540 43090610628064 53863263285080 107726526570160 215453053140320