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8009311604 = 2271935342649
BaseRepresentation
bin1110111010110010…
…00110010101110100
3202200011221012000112
413131121012111310
5112400340432404
63402431202152
7402323011460
oct73531062564
922604835015
108009311604
113440058398
121676376358
139a8453548
1455da0d4a0
1531d23956e
hex1dd646574

8009311604 has 48 divisors (see below), whose sum is σ = 16909872000. Its totient is φ = 3242612736.

The previous prime is 8009311601. The next prime is 8009311613. The reversal of 8009311604 is 4061139008.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8009311601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166472 + ... + 209120.

It is an arithmetic number, because the mean of its divisors is an integer number (352289000).

Almost surely, 28009311604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8009311604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8454936000).

8009311604 is an abundant number, since it is smaller than the sum of its proper divisors (8900560396).

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

8009311604 is a wasteful number, since it uses less digits than its factorization.

8009311604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43032 (or 43030 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 8009311604 is about 89494.7574106998. The cubic root of 8009311604 is about 2000.7756661321.

The spelling of 8009311604 in words is "eight billion, nine million, three hundred eleven thousand, six hundred four".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 353 532 706 1412 2471 4942 6707 9884 13414 26828 42649 46949 85298 93898 170596 187796 298543 597086 810331 1194172 1620662 3241324 5672317 11344634 15055097 22689268 30110194 60220388 105385679 210771358 286046843 421542716 572093686 1144187372 2002327901 4004655802 8009311604