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8506872444 = 2237101272291
BaseRepresentation
bin1111110110000110…
…01001001001111100
3210221212011220011210
413323003021021330
5114410224404234
63524043444420
7420544136250
oct77303111174
923855156153
108506872444
1136759a91a4
121794b26710
13a57563345
145a9b2c260
1534bc6ebe9
hex1fb0c927c

8506872444 has 24 divisors (see below), whose sum is σ = 22684993408. Its totient is φ = 2430534960.

The previous prime is 8506872421. The next prime is 8506872469. The reversal of 8506872444 is 4442786058.

It is a junction number, because it is equal to n+sod(n) for n = 8506872393 and 8506872402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50636062 + ... + 50636229.

Almost surely, 28506872444 is an apocalyptic number.

8506872444 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

8506872444 is an abundant number, since it is smaller than the sum of its proper divisors (14178120964).

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

8506872444 is a wasteful number, since it uses less digits than its factorization.

8506872444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101272305 (or 101272303 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 48.

The square root of 8506872444 is about 92232.7081029284. The cubic root of 8506872444 is about 2041.3774213423.

The spelling of 8506872444 in words is "eight billion, five hundred six million, eight hundred seventy-two thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 101272291 202544582 303816873 405089164 607633746 708906037 1215267492 1417812074 2126718111 2835624148 4253436222 8506872444