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2274122778 = 23379020463
BaseRepresentation
bin1000011110001100…
…0101110000011010
312212111011101222120
42013203011300122
514124133412103
61013354202110
7110232503364
oct20743056032
95774141876
102274122778
11a67757114
12535723336
132a31b48a5
14178053d34
15d49ae253
hex878c5c1a

2274122778 has 8 divisors (see below), whose sum is σ = 4548245568. Its totient is φ = 758040924.

The previous prime is 2274122771. The next prime is 2274122779. The reversal of 2274122778 is 8772214722.

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

2274122778 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2274122771) 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, 189510226 + ... + 189510237.

It is an arithmetic number, because the mean of its divisors is an integer number (568530696).

Almost surely, 22274122778 is an apocalyptic number.

2274122778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2274122778 is a wasteful number, since it uses less digits than its factorization.

2274122778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379020468.

The product of its digits is 175616, while the sum is 42.

The square root of 2274122778 is about 47687.7633990104. The cubic root of 2274122778 is about 1315.0369910609.

The spelling of 2274122778 in words is "two billion, two hundred seventy-four million, one hundred twenty-two thousand, seven hundred seventy-eight".

Divisors: 1 2 3 6 379020463 758040926 1137061389 2274122778