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2216282949 = 321912960719
BaseRepresentation
bin1000010000011001…
…1100101101000101
312201110022211122200
42010012130231011
514014332023244
61003530345113
7105631044216
oct20406345505
95643284580
102216282949
11a38041201
1251a28b199
13294212c3a
141704b940d
15ce886669
hex8419cb45

2216282949 has 12 divisors (see below), whose sum is σ = 3369787200. Its totient is φ = 1399757544.

The previous prime is 2216282941. The next prime is 2216282953. The reversal of 2216282949 is 9492826122.

It is not a de Polignac number, because 2216282949 - 23 = 2216282941 is a prime.

It is a super-2 number, since 2×22162829492 = 9823820220056273202, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216282941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6480189 + ... + 6480530.

It is an arithmetic number, because the mean of its divisors is an integer number (280815600).

Almost surely, 22216282949 is an apocalyptic number.

It is an amenable number.

2216282949 is a deficient number, since it is larger than the sum of its proper divisors (1153504251).

2216282949 is a wasteful number, since it uses less digits than its factorization.

2216282949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12960744 (or 12960741 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 2216282949 is about 47077.4144256033. The cubic root of 2216282949 is about 1303.7922696953.

It can be divided in two parts, 22162 and 82949, that added together give a triangular number (105111 = T458).

The spelling of 2216282949 in words is "two billion, two hundred sixteen million, two hundred eighty-two thousand, nine hundred forty-nine".

Divisors: 1 3 9 19 57 171 12960719 38882157 116646471 246253661 738760983 2216282949