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2205030772 = 227297115981
BaseRepresentation
bin1000001101101110…
…0001100101110100
312200200011011120101
42003123201211310
514003441441042
61002445243444
7105433311100
oct20333414564
95620134511
102205030772
11a3175628a
12516563584
13291aa3449
1416cbca900
15cd8b26b7
hex836e1974

2205030772 has 36 divisors (see below), whose sum is σ = 4535128164. Its totient is φ = 935262720.

The previous prime is 2205030757. The next prime is 2205030787. The reversal of 2205030772 is 2770305022.

It is an interprime number because it is at equal distance from previous prime (2205030757) and next prime (2205030787).

It can be written as a sum of positive squares in 2 ways, for example, as 971194896 + 1233835876 = 31164^2 + 35126^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 2205030772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38979 + ... + 77002.

Almost surely, 22205030772 is an apocalyptic number.

It is an amenable number.

2205030772 is an abundant number, since it is smaller than the sum of its proper divisors (2330097392).

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

2205030772 is a wasteful number, since it uses less digits than its factorization.

2205030772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116096 (or 116087 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 2205030772 is about 46957.7551848467. The cubic root of 2205030772 is about 1301.5820526168.

Adding to 2205030772 its reverse (2770305022), we get a palindrome (4975335794).

The spelling of 2205030772 in words is "two billion, two hundred five million, thirty thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 14 28 49 97 98 194 196 388 679 1358 2716 4753 9506 19012 115981 231962 463924 811867 1623734 3247468 5683069 11250157 11366138 22500314 22732276 45000628 78751099 157502198 315004396 551257693 1102515386 2205030772