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6468130320 = 2435127212209
BaseRepresentation
bin1100000011000011…
…11101011000010000
3121200202221001202020
412001201331120100
5101221320132240
62545454251440
7316200125541
oct60141753020
917622831666
106468130320
11281a100053
1213061b6b80
137c1072b62
1445506a4c8
1527cca80d0
hex18187d610

6468130320 has 80 divisors (see below), whose sum is σ = 20209182720. Its totient is φ = 1711245312.

The previous prime is 6468130307. The next prime is 6468130337. The reversal of 6468130320 is 230318646.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75625 + ... + 136584.

It is an arithmetic number, because the mean of its divisors is an integer number (252614784).

Almost surely, 26468130320 is an apocalyptic number.

6468130320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6468130320 is an abundant number, since it is smaller than the sum of its proper divisors (13741052400).

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

6468130320 is a wasteful number, since it uses less digits than its factorization.

6468130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212352 (or 212346 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 6468130320 is about 80424.6872545986. The cubic root of 6468130320 is about 1863.2004789486.

Adding to 6468130320 its reverse (230318646), we get a palindrome (6698448966).

The spelling of 6468130320 in words is "six billion, four hundred sixty-eight million, one hundred thirty thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 127 240 254 381 508 635 762 1016 1270 1524 1905 2032 2540 3048 3810 5080 6096 7620 10160 15240 30480 212209 424418 636627 848836 1061045 1273254 1697672 2122090 2546508 3183135 3395344 4244180 5093016 6366270 8488360 10186032 12732540 16976720 25465080 26950543 50930160 53901086 80851629 107802172 134752715 161703258 215604344 269505430 323406516 404258145 431208688 539010860 646813032 808516290 1078021720 1293626064 1617032580 2156043440 3234065160 6468130320