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8371145380 = 22513592292383
BaseRepresentation
bin1111100101111010…
…11000101010100100
3210121101210020122111
413302331120222210
5114121003123010
63502354410404
7414305363443
oct76275305244
923541706574
108371145380
113606325474
121757590a04
13a353c0b80
14595abad5a
1533edae58a
hex1f2f58aa4

8371145380 has 96 divisors (see below), whose sum is σ = 19344729600. Its totient is φ = 3023958528.

The previous prime is 8371145369. The next prime is 8371145383. The reversal of 8371145380 is 835411738.

It is not an unprimeable number, because it can be changed into a prime (8371145383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3511669 + ... + 3514051.

It is an arithmetic number, because the mean of its divisors is an integer number (201507600).

Almost surely, 28371145380 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 8371145380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9672364800).

8371145380 is an abundant number, since it is smaller than the sum of its proper divisors (10973584220).

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

8371145380 is a wasteful number, since it uses less digits than its factorization.

8371145380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693 (or 2691 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 8371145380 is about 91493.9636260229. The cubic root of 8371145380 is about 2030.4624457051.

The spelling of 8371145380 in words is "eight billion, three hundred seventy-one million, one hundred forty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 59 65 118 130 229 236 260 295 458 590 767 916 1145 1180 1534 2290 2383 2977 3068 3835 4580 4766 5954 7670 9532 11908 11915 13511 14885 15340 23830 27022 29770 30979 47660 54044 59540 61958 67555 123916 135110 140597 154895 175643 270220 281194 309790 351286 545707 562388 619580 702572 702985 878215 1091414 1405970 1756430 1827761 2182828 2728535 2811940 3512860 3655522 5457070 7094191 7311044 9138805 10914140 14188382 18277610 28376764 32196713 35470955 36555220 64393426 70941910 128786852 141883820 160983565 321967130 418557269 643934260 837114538 1674229076 2092786345 4185572690 8371145380