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2228637697 = 111341894271
BaseRepresentation
bin1000010011010110…
…0101000000000001
312202022120112011221
42010311211000001
514031012401242
61005051235041
7106141051666
oct20465450001
95668515157
102228637697
11a4400a540
12522448a81
1329694a540
14171db3a6d
15d09c7167
hex84d65001

2228637697 has 32 divisors (see below), whose sum is σ = 2712890880. Its totient is φ = 1803648000.

The previous prime is 2228637679. The next prime is 2228637701. The reversal of 2228637697 is 7967368222.

It is not a de Polignac number, because 2228637697 - 211 = 2228635649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2228637097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 519672 + ... + 523942.

It is an arithmetic number, because the mean of its divisors is an integer number (84777840).

Almost surely, 22228637697 is an apocalyptic number.

It is an amenable number.

2228637697 is a deficient number, since it is larger than the sum of its proper divisors (484253183).

2228637697 is a wasteful number, since it uses less digits than its factorization.

2228637697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425.

The product of its digits is 3048192, while the sum is 52.

The square root of 2228637697 is about 47208.4494238055. The cubic root of 2228637697 is about 1306.2104605844.

The spelling of 2228637697 in words is "two billion, two hundred twenty-eight million, six hundred thirty-seven thousand, six hundred ninety-seven".

Divisors: 1 11 13 41 89 143 451 533 979 1157 3649 4271 5863 12727 40139 46981 47437 55523 175111 380119 521807 610753 1926221 2276443 4181309 4941547 15584879 25040873 54357017 171433669 202603427 2228637697