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12578071104 = 263246732
BaseRepresentation
bin10111011011011011…
…00010001001000000
31012110120212012211100
423231231202021000
5201224441233404
65440035414400
7623460561144
oct135555421100
935416765740
1012578071104
115374aa1a95
122530454400
131255b53031
148746d7224
154d93aad39
hex2edb62240

12578071104 has 63 divisors (see below), whose sum is σ = 36060486553. Its totient is φ = 4191793152.

The previous prime is 12578071069. The next prime is 12578071147. The reversal of 12578071104 is 40117087521.

The square root of 12578071104 is 112152.

It is a perfect power (a square), and thus also a powerful number.

12578071104 is a `hidden beast` number, since 1 + 2 + 578 + 0 + 71 + 10 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12056040000 + 522031104 = 109800^2 + 22848^2 .

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2689312 + ... + 2693984.

Almost surely, 212578071104 is an apocalyptic number.

12578071104 is the 112152-nd square number.

It is an amenable number.

12578071104 is an abundant number, since it is smaller than the sum of its proper divisors (23482415449).

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

12578071104 is an frugal number, since it uses more digits than its factorization.

12578071104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9364 (or 4678 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

Multiplying 12578071104 by its sum of digits (36), we get a square (452810559744 = 6729122).

12578071104 divided by its sum of digits (36) gives a square (349390864 = 186922).

The spelling of 12578071104 in words is "twelve billion, five hundred seventy-eight million, seventy-one thousand, one hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 4673 9346 14019 18692 28038 37384 42057 56076 74768 84114 112152 149536 168228 224304 299072 336456 448608 672912 897216 1345824 2691648 21836929 43673858 65510787 87347716 131021574 174695432 196532361 262043148 349390864 393064722 524086296 698781728 786129444 1048172592 1397563456 1572258888 2096345184 3144517776 4192690368 6289035552 12578071104