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3121000301 = 17210799309
BaseRepresentation
bin1011101000000110…
…1010111101101101
322001111201020112202
42322001222331231
522342434002201
61233405511245
7140225031146
oct27201527555
98044636482
103121000301
1113617a57a1
12731272525
133a979b853
14218702acd
15133ee5c6b
hexba06af6d

3121000301 has 6 divisors (see below), whose sum is σ = 3315388170. Its totient is φ = 2937411776.

The previous prime is 3121000261. The next prime is 3121000343. The reversal of 3121000301 is 1030001213.

It can be written as a sum of positive squares in 3 ways, for example, as 1927297801 + 1193702500 = 43901^2 + 34550^2 .

It is a de Polignac number, because none of the positive numbers 2k-3121000301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121030301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5399366 + ... + 5399943.

It is an arithmetic number, because the mean of its divisors is an integer number (552564695).

Almost surely, 23121000301 is an apocalyptic number.

It is an amenable number.

3121000301 is a deficient number, since it is larger than the sum of its proper divisors (194387869).

3121000301 is a wasteful number, since it uses less digits than its factorization.

3121000301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10799343 (or 10799326 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 3121000301 is about 55865.9135878041. The cubic root of 3121000301 is about 1461.3848592959.

Adding to 3121000301 its reverse (1030001213), we get a palindrome (4151001514).

The spelling of 3121000301 in words is "three billion, one hundred twenty-one million, three hundred one", and thus it is an aban number.

Divisors: 1 17 289 10799309 183588253 3121000301