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2813198320 = 24535164979
BaseRepresentation
bin1010011110101101…
…1111111111110000
321021001112021121101
42213223133333300
521230134321240
61143052334144
7126466535242
oct24753377760
97231467541
102813198320
111213a82599
12666174354
1335aa9b7ba
141c989c092
15116e9539a
hexa7adfff0

2813198320 has 20 divisors (see below), whose sum is σ = 6540686280. Its totient is φ = 1125279296.

The previous prime is 2813198303. The next prime is 2813198321. The reversal of 2813198320 is 238913182.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 2813198320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2813198321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17582410 + ... + 17582569.

It is an arithmetic number, because the mean of its divisors is an integer number (327034314).

Almost surely, 22813198320 is an apocalyptic number.

2813198320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2813198320 is an abundant number, since it is smaller than the sum of its proper divisors (3727487960).

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

2813198320 is a wasteful number, since it uses less digits than its factorization.

2813198320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35164992 (or 35164986 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 2813198320 is about 53039.5920044640. The cubic root of 2813198320 is about 1411.6708593037.

The spelling of 2813198320 in words is "two billion, eight hundred thirteen million, one hundred ninety-eight thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 35164979 70329958 140659916 175824895 281319832 351649790 562639664 703299580 1406599160 2813198320