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2820063478 = 210912936071
BaseRepresentation
bin1010100000010110…
…1100000011110110
321021112110001211111
42220011230003312
521233414012403
61143455425234
7126612100261
oct25005540366
97245401744
102820063478
111217941481
1266852521a
1335c33351b
141ca767cd8
1511789e56d
hexa816c0f6

2820063478 has 8 divisors (see below), whose sum is σ = 4268903760. Its totient is φ = 1397095560.

The previous prime is 2820063461. The next prime is 2820063529. The reversal of 2820063478 is 8743600282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2820063478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6467818 + ... + 6468253.

It is an arithmetic number, because the mean of its divisors is an integer number (533612970).

Almost surely, 22820063478 is an apocalyptic number.

2820063478 is a deficient number, since it is larger than the sum of its proper divisors (1448840282).

2820063478 is a wasteful number, since it uses less digits than its factorization.

2820063478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12936182.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 2820063478 is about 53104.2698659910. The cubic root of 2820063478 is about 1412.8182450279.

The spelling of 2820063478 in words is "two billion, eight hundred twenty million, sixty-three thousand, four hundred seventy-eight".

Divisors: 1 2 109 218 12936071 25872142 1410031739 2820063478