Search a number
-
+
2227970357 is a prime number
BaseRepresentation
bin1000010011001100…
…0010000100110101
312202021022121202122
42010303002010311
514030330022412
61005025045325
7106132302254
oct20463020465
95667277678
102227970357
11a436a4118
12522186845
13296775872
14171c7c79b
15d08e4572
hex84cc2135

2227970357 has 2 divisors, whose sum is σ = 2227970358. Its totient is φ = 2227970356.

The previous prime is 2227970351. The next prime is 2227970387. The reversal of 2227970357 is 7530797222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2138970001 + 89000356 = 46249^2 + 9434^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2227970357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2227970351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1113985178 + 1113985179.

It is an arithmetic number, because the mean of its divisors is an integer number (1113985179).

Almost surely, 22227970357 is an apocalyptic number.

It is an amenable number.

2227970357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2227970357 is an equidigital number, since it uses as much as digits as its factorization.

2227970357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 370440, while the sum is 44.

The square root of 2227970357 is about 47201.3808802243. The cubic root of 2227970357 is about 1306.0800709881.

The spelling of 2227970357 in words is "two billion, two hundred twenty-seven million, nine hundred seventy thousand, three hundred fifty-seven".