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801325890 = 232561227643
BaseRepresentation
bin101111110000110…
…100001101000010
32001211211120110200
4233300310031002
53120114412030
6211303110030
725600105041
oct5760641502
92054746420
10801325890
11381367002
121a4442316
13ca028541
14785d2558
154a539d60
hex2fc34342

801325890 has 96 divisors (see below), whose sum is σ = 2130238656. Its totient is φ = 208932480.

The previous prime is 801325879. The next prime is 801325937. The reversal of 801325890 is 98523108.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1245909 + ... + 1246551.

It is an arithmetic number, because the mean of its divisors is an integer number (22189986).

Almost surely, 2801325890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 801325890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1065119328).

801325890 is an abundant number, since it is smaller than the sum of its proper divisors (1328912766).

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

801325890 is a wasteful number, since it uses less digits than its factorization.

801325890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 801325890 is about 28307.7001891711. The cubic root of 801325890 is about 928.8303366736.

Adding to 801325890 its reverse (98523108), we get a palindrome (899848998).

The spelling of 801325890 in words is "eight hundred one million, three hundred twenty-five thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 61 90 122 183 227 305 366 454 549 610 643 681 915 1098 1135 1286 1362 1830 1929 2043 2270 2745 3215 3405 3858 4086 5490 5787 6430 6810 9645 10215 11574 13847 19290 20430 27694 28935 39223 41541 57870 69235 78446 83082 117669 124623 138470 145961 196115 207705 235338 249246 291922 353007 392230 415410 437883 588345 623115 706014 729805 875766 1176690 1246230 1313649 1459610 1765035 2189415 2627298 3530070 4378830 6568245 8903621 13136490 17807242 26710863 44518105 53421726 80132589 89036210 133554315 160265178 267108630 400662945 801325890