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8308407380 = 22571313193461
BaseRepresentation
bin1111011110011100…
…00011110001010100
3210110000201211021212
413233032003301110
5114003423014010
63452234000552
7412614204020
oct75716036124
923400654255
108308407380
113583974489
12173a576158
13a253c58b0
1458b629380
1533961a505
hex1ef383c54

8308407380 has 96 divisors (see below), whose sum is σ = 21496527360. Its totient is φ = 2626721280.

The previous prime is 8308407311. The next prime is 8308407391. The reversal of 8308407380 is 837048038.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2398850 + ... + 2402310.

It is an arithmetic number, because the mean of its divisors is an integer number (223922160).

Almost surely, 28308407380 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 8308407380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10748263680).

8308407380 is an abundant number, since it is smaller than the sum of its proper divisors (13188119980).

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

8308407380 is a wasteful number, since it uses less digits than its factorization.

8308407380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4809 (or 4807 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 8308407380 is about 91150.4656049545. The cubic root of 8308407380 is about 2025.3772506520.

The spelling of 8308407380 in words is "eight billion, three hundred eight million, four hundred seven thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1319 1820 2638 3461 5276 6595 6922 9233 13190 13844 17147 17305 18466 24227 26380 34294 34610 36932 44993 46165 48454 68588 69220 85735 89986 92330 96908 120029 121135 171470 179972 184660 224965 240058 242270 314951 342940 449930 480116 484540 600145 629902 899860 1200290 1259804 1574755 2400580 3149510 4565059 6299020 9130118 18260236 22825295 31955413 45650590 59345767 63910826 91301180 118691534 127821652 159777065 237383068 296728835 319554130 415420369 593457670 639108260 830840738 1186915340 1661681476 2077101845 4154203690 8308407380