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6410000000 = 2757641
BaseRepresentation
bin1011111100001000…
…01101011010000000
3121112201112201221102
411332010031122000
5101111430000000
62540020313532
7314563046435
oct57604153200
917481481842
106410000000
11279a306968
1212aa8428a8
137b1ccbc11
1444b457b8c
15277b243d5
hex17e10d680

6410000000 has 128 divisors (see below), whose sum is σ = 15987263760. Its totient is φ = 2560000000.

The previous prime is 6409999943. The next prime is 6410000021. The reversal of 6410000000 is 146.

It can be written as a sum of positive squares in 8 ways, for example, as 4811919424 + 1598080576 = 69368^2 + 39976^2 .

It is a sliding number, since 6410000000 = 160000000 + 6250000000 and 1/160000000 + 1/6250000000 = 0.000000006410000000.

It is a tau number, because it is divible by the number of its divisors (128).

It is a nialpdrome in base 10.

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, 9999680 + ... + 10000320.

Almost surely, 26410000000 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 6410000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7993631880).

6410000000 is an abundant number, since it is smaller than the sum of its proper divisors (9577263760).

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

6410000000 is an frugal number, since it uses more digits than its factorization.

6410000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 6410000000 is about 80062.4756049924. The cubic root of 6410000000 is about 1857.6020279109.

Adding to 6410000000 its reverse (146), we get a palindrome (6410000146).

The spelling of 6410000000 in words is "six billion, four hundred ten million", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 625 640 641 800 1000 1250 1282 1600 2000 2500 2564 3125 3200 3205 4000 5000 5128 6250 6410 8000 10000 10256 12500 12820 15625 16000 16025 20000 20512 25000 25640 31250 32050 40000 41024 50000 51280 62500 64100 78125 80000 80125 82048 100000 102560 125000 128200 156250 160250 200000 205120 250000 256400 312500 320500 400000 400625 410240 500000 512800 625000 641000 801250 1000000 1025600 1250000 1282000 1602500 2000000 2003125 2051200 2500000 2564000 3205000 4006250 5000000 5128000 6410000 8012500 10000000 10015625 10256000 12820000 16025000 20031250 25640000 32050000 40062500 50078125 51280000 64100000 80125000 100156250 128200000 160250000 200312500 256400000 320500000 400625000 641000000 801250000 1282000000 1602500000 3205000000 6410000000