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810042342670 = 251123320174839
BaseRepresentation
bin10111100100110100100…
…10010011110100001110
32212102212020120121100001
423302122102103310032
5101232431314431140
61420043414354514
7112344414210001
oct13623222236416
92772766517301
10810042342670
1129259a86a450
12110ba965ba3a
135b504670a82
142b2c5d8b538
151610ec65e9a
hexbc9a493d0e

810042342670 has 32 divisors (see below), whose sum is σ = 1659786370560. Its totient is φ = 281753857440.

The previous prime is 810042342649. The next prime is 810042342689. The reversal of 810042342670 is 76243240018.

810042342670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160084890 + ... + 160089949.

It is an arithmetic number, because the mean of its divisors is an integer number (51868324080).

Almost surely, 2810042342670 is an apocalyptic number.

810042342670 is an abundant number, since it is smaller than the sum of its proper divisors (849744027890).

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

810042342670 is a wasteful number, since it uses less digits than its factorization.

810042342670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320174880.

The product of its (nonzero) digits is 64512, while the sum is 37.

Adding to 810042342670 its reverse (76243240018), we get a palindrome (886285582688).

The spelling of 810042342670 in words is "eight hundred ten billion, forty-two million, three hundred forty-two thousand, six hundred seventy".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 230 253 506 1265 2530 320174839 640349678 1600874195 3201748390 3521923229 7043846458 7364021297 14728042594 17609616145 35219232290 36820106485 73640212970 81004234267 162008468534 405021171335 810042342670