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6409869380 = 2251731608147
BaseRepresentation
bin1011111100000111…
…01101100001000100
3121112201022002202122
411332003231201010
5101111411310010
62540013425112
7314561663555
oct57603554104
917481262678
106409869380
11279a227812
1212aa79b198
137b1c84625
1444b42232c
15277aea855
hex17e0ed844

6409869380 has 48 divisors (see below), whose sum is σ = 14712316416. Its totient is φ = 2335280640.

The previous prime is 6409869313. The next prime is 6409869409. The reversal of 6409869380 is 839689046.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293534 + ... + 314613.

It is an arithmetic number, because the mean of its divisors is an integer number (306506592).

Almost surely, 26409869380 is an apocalyptic number.

It is an amenable number.

6409869380 is an abundant number, since it is smaller than the sum of its proper divisors (8302447036).

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

6409869380 is a wasteful number, since it uses less digits than its factorization.

6409869380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608204 (or 608202 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 53.

The square root of 6409869380 is about 80061.6598628832. The cubic root of 6409869380 is about 1857.5894100417.

The spelling of 6409869380 in words is "six billion, four hundred nine million, eight hundred sixty-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 17 20 31 34 62 68 85 124 155 170 310 340 527 620 1054 2108 2635 5270 10540 608147 1216294 2432588 3040735 6081470 10338499 12162940 18852557 20676998 37705114 41353996 51692495 75410228 94262785 103384990 188525570 206769980 320493469 377051140 640986938 1281973876 1602467345 3204934690 6409869380