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3103121141 = 5153602197
BaseRepresentation
bin1011100011110101…
…1101111011110101
322000021001212221122
42320331131323311
522323344334031
61231530353325
7136620044261
oct27075357365
98007055848
103103121141
1113526a392a
1272728b845
133a5b7b873
142161ab0a1
1513266347b
hexb8f5def5

3103121141 has 4 divisors (see below), whose sum is σ = 3103728492. Its totient is φ = 3102513792.

The previous prime is 3103121117. The next prime is 3103121159. The reversal of 3103121141 is 1411213013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1411213013 = 7201601859.

It can be written as a sum of positive squares in 2 ways, for example, as 1888250116 + 1214871025 = 43454^2 + 34855^2 .

It is a cyclic number.

It is not a de Polignac number, because 3103121141 - 222 = 3098926837 is a prime.

It is a super-2 number, since 2×31031211412 = 19258721631442283762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103121341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295946 + ... + 306251.

It is an arithmetic number, because the mean of its divisors is an integer number (775932123).

Almost surely, 23103121141 is an apocalyptic number.

It is an amenable number.

3103121141 is a deficient number, since it is larger than the sum of its proper divisors (607351).

3103121141 is an equidigital number, since it uses as much as digits as its factorization.

3103121141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607350.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 3103121141 is about 55705.6652504931. The cubic root of 3103121141 is about 1458.5889195254.

Adding to 3103121141 its reverse (1411213013), we get a palindrome (4514334154).

The spelling of 3103121141 in words is "three billion, one hundred three million, one hundred twenty-one thousand, one hundred forty-one".

Divisors: 1 5153 602197 3103121141