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2120411252 = 221493557737
BaseRepresentation
bin111111001100010…
…1110100001110100
312110202221001102002
41332120232201310
513320311130002
6550223434432
7103355125001
oct17630564164
95422831362
102120411252
11998a0a3a3
124b2155a18
1327a3b651b
141618808a8
15c624a002
hex7e62e874

2120411252 has 12 divisors (see below), whose sum is σ = 3735624900. Its totient is φ = 1053089856.

The previous prime is 2120411233. The next prime is 2120411257. The reversal of 2120411252 is 2521140212.

It can be written as a sum of positive squares in 2 ways, for example, as 1325396836 + 795014416 = 36406^2 + 28196^2 .

It is a super-2 number, since 2×21204112522 = 8992287755216415008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120411257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778273 + ... + 1779464.

It is an arithmetic number, because the mean of its divisors is an integer number (311302075).

Almost surely, 22120411252 is an apocalyptic number.

It is an amenable number.

2120411252 is a deficient number, since it is larger than the sum of its proper divisors (1615213648).

2120411252 is a wasteful number, since it uses less digits than its factorization.

2120411252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557890 (or 3557888 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2120411252 is about 46047.9234276639. The cubic root of 2120411252 is about 1284.7147195333.

Adding to 2120411252 its reverse (2521140212), we get a palindrome (4641551464).

The spelling of 2120411252 in words is "two billion, one hundred twenty million, four hundred eleven thousand, two hundred fifty-two".

Divisors: 1 2 4 149 298 596 3557737 7115474 14230948 530102813 1060205626 2120411252