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804852690 = 235313072819
BaseRepresentation
bin101111111110010…
…001001111010010
32002002110202022220
4233332101033102
53122020241230
6211510441510
725642064205
oct5776211722
92062422286
10804852690
11383355814
121a5663296
13ca9918c5
1478c6d93c
154a9d4d10
hex2ff913d2

804852690 has 64 divisors (see below), whose sum is σ = 2001162240. Its totient is φ = 206953920.

The previous prime is 804852637. The next prime is 804852701. The reversal of 804852690 is 96258408.

It is a super-2 number, since 2×8048526902 = 1295575705200472200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284101 + ... + 286919.

It is an arithmetic number, because the mean of its divisors is an integer number (31268160).

Almost surely, 2804852690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804852690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000581120).

804852690 is an abundant number, since it is smaller than the sum of its proper divisors (1196309550).

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

804852690 is a wasteful number, since it uses less digits than its factorization.

804852690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 804852690 is about 28369.9258018064. The cubic root of 804852690 is about 930.1910001969.

The spelling of 804852690 in words is "eight hundred four million, eight hundred fifty-two thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 307 310 465 614 921 930 1535 1842 2819 3070 4605 5638 8457 9210 9517 14095 16914 19034 28190 28551 42285 47585 57102 84570 87389 95170 142755 174778 262167 285510 436945 524334 865433 873890 1310835 1730866 2596299 2621670 4327165 5192598 8654330 12981495 25962990 26828423 53656846 80485269 134142115 160970538 268284230 402426345 804852690