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8041631445 = 325881202841
BaseRepresentation
bin1110111110101000…
…11000111011010101
3202202102202012111200
413133110120323111
5112432124201240
63405544023113
7403164511431
oct73724307325
922672665450
108041631445
113457322801
121685161a99
139b205b403
145640239c1
15320ec0930
hex1df518ed5

8041631445 has 24 divisors (see below), whose sum is σ = 13954718232. Its totient is φ = 4283980800.

The previous prime is 8041631419. The next prime is 8041631453. The reversal of 8041631445 is 5441361408.

It can be written as a sum of positive squares in 4 ways, for example, as 242798724 + 7798832721 = 15582^2 + 88311^2 .

It is not a de Polignac number, because 8041631445 - 211 = 8041629397 is a prime.

It is a super-3 number, since 3×80416314453 (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61776 + ... + 141065.

It is an arithmetic number, because the mean of its divisors is an integer number (581446593).

Almost surely, 28041631445 is an apocalyptic number.

It is an amenable number.

8041631445 is a deficient number, since it is larger than the sum of its proper divisors (5913086787).

8041631445 is a wasteful number, since it uses less digits than its factorization.

8041631445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203733 (or 203730 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 8041631445 is about 89675.1439642000. The cubic root of 8041631445 is about 2003.4632864452.

The spelling of 8041631445 in words is "eight billion, forty-one million, six hundred thirty-one thousand, four hundred forty-five".

Divisors: 1 3 5 9 15 45 881 2643 4405 7929 13215 39645 202841 608523 1014205 1825569 3042615 9127845 178702921 536108763 893514605 1608326289 2680543815 8041631445