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814215253270 = 25315944516963
BaseRepresentation
bin10111101100100110000…
…00101100110100010110
32212211122001122102112111
423312103000230310112
5101320003101101040
61422013442341234
7112553004314056
oct13662300546426
92784561572474
10814215253270
112943413139a1
1211197305a81a
135ba1b053543
142b5a0271566
15162a6293dea
hexbd9302cd16

814215253270 has 32 divisors (see below), whose sum is σ = 1538506275840. Its totient is φ = 309838055520.

The previous prime is 814215253213. The next prime is 814215253321. The reversal of 814215253270 is 72352512418.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 22240192 + ... + 22276771.

It is an arithmetic number, because the mean of its divisors is an integer number (48078321120).

Almost surely, 2814215253270 is an apocalyptic number.

814215253270 is a deficient number, since it is larger than the sum of its proper divisors (724291022570).

814215253270 is a wasteful number, since it uses less digits than its factorization.

814215253270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44517060.

The product of its (nonzero) digits is 134400, while the sum is 40.

Adding to 814215253270 its reverse (72352512418), we get a palindrome (886567765688).

The spelling of 814215253270 in words is "eight hundred fourteen billion, two hundred fifteen million, two hundred fifty-three thousand, two hundred seventy".

Divisors: 1 2 5 10 31 59 62 118 155 295 310 590 1829 3658 9145 18290 44516963 89033926 222584815 445169630 1380025853 2626500817 2760051706 5253001634 6900129265 13132504085 13800258530 26265008170 81421525327 162843050654 407107626635 814215253270