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3121067252 = 22780266813
BaseRepresentation
bin1011101000000111…
…1011010011110100
322001111211122101102
42322001323103310
522342443123002
61233411145232
7140225430302
oct27201732364
98044748342
103121067252
111361841026
127312a5218
133a97c3174
1421871d272
1513400aa02
hexba07b4f4

3121067252 has 6 divisors (see below), whose sum is σ = 5461867698. Its totient is φ = 1560533624.

The previous prime is 3121067251. The next prime is 3121067297. The reversal of 3121067252 is 2527601213.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3113193616 + 7873636 = 55796^2 + 2806^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121067251) 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 as a sum of consecutive naturals, namely, 390133403 + ... + 390133410.

It is an arithmetic number, because the mean of its divisors is an integer number (910311283).

Almost surely, 23121067252 is an apocalyptic number.

It is an amenable number.

3121067252 is a deficient number, since it is larger than the sum of its proper divisors (2340800446).

3121067252 is a wasteful number, since it uses less digits than its factorization.

3121067252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780266817 (or 780266815 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 3121067252 is about 55866.5127961286. The cubic root of 3121067252 is about 1461.3953089882.

Adding to 3121067252 its reverse (2527601213), we get a palindrome (5648668465).

The spelling of 3121067252 in words is "three billion, one hundred twenty-one million, sixty-seven thousand, two hundred fifty-two".

Divisors: 1 2 4 780266813 1560533626 3121067252