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812452741270 = 25179453884213
BaseRepresentation
bin10111101001010011111…
…01010000000010010110
32212200002020011112121021
423310221331100002112
5101302400400210040
61421122521511354
7112461223233112
oct13645175200226
92780066145537
10812452741270
11293617434605
1211156094255a
135b7c9b5a831
142b474156742
151620169324a
hexbd29f50096

812452741270 has 16 divisors (see below), whose sum is σ = 1470584853360. Its totient is φ = 323165558944.

The previous prime is 812452741259. The next prime is 812452741277. The reversal of 812452741270 is 72147254218.

It is a super-2 number, since 2×8124527412702 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812452741277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226940317 + ... + 226943896.

It is an arithmetic number, because the mean of its divisors is an integer number (91911553335).

Almost surely, 2812452741270 is an apocalyptic number.

812452741270 is a deficient number, since it is larger than the sum of its proper divisors (658132112090).

812452741270 is a wasteful number, since it uses less digits than its factorization.

812452741270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453884399.

The product of its (nonzero) digits is 250880, while the sum is 43.

Adding to 812452741270 its reverse (72147254218), we get a palindrome (884599995488).

The spelling of 812452741270 in words is "eight hundred twelve billion, four hundred fifty-two million, seven hundred forty-one thousand, two hundred seventy".

Divisors: 1 2 5 10 179 358 895 1790 453884213 907768426 2269421065 4538842130 81245274127 162490548254 406226370635 812452741270