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768003420 = 223561209837
BaseRepresentation
bin101101110001101…
…100110101011100
31222112010121122010
4231301230311130
53033102102140
6204112551220
725013631012
oct5561546534
91875117563
10768003420
11364577378
12195252510
13c315c1c2
1473dda8b2
1547656880
hex2dc6cd5c

768003420 has 48 divisors (see below), whose sum is σ = 2185672608. Its totient is φ = 201442560.

The previous prime is 768003409. The next prime is 768003421. The reversal of 768003420 is 24300867.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768003421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101259 + ... + 108578.

It is an arithmetic number, because the mean of its divisors is an integer number (45534846).

Almost surely, 2768003420 is an apocalyptic number.

It is an amenable number.

768003420 is an abundant number, since it is smaller than the sum of its proper divisors (1417669188).

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

768003420 is a wasteful number, since it uses less digits than its factorization.

768003420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209910 (or 209908 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 768003420 is about 27712.8746253434. The cubic root of 768003420 is about 915.7727533888.

The spelling of 768003420 in words is "seven hundred sixty-eight million, three thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 61 122 183 244 305 366 610 732 915 1220 1830 3660 209837 419674 629511 839348 1049185 1259022 2098370 2518044 3147555 4196740 6295110 12590220 12800057 25600114 38400171 51200228 64000285 76800342 128000570 153600684 192000855 256001140 384001710 768003420