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3121104033 = 322922735261
BaseRepresentation
bin1011101000001000…
…0100010010100001
322001111220111211200
42322002010102201
522343000312113
61233412031413
7140225642445
oct27202042241
98044814750
103121104033
111361866723
12731302569
133a9806b28
1421872c825
15134016873
hexba0844a1

3121104033 has 24 divisors (see below), whose sum is σ = 4666657320. Its totient is φ = 2007720960.

The previous prime is 3121104011. The next prime is 3121104047. The reversal of 3121104033 is 3304011213.

It can be written as a sum of positive squares in 4 ways, for example, as 1470875904 + 1650228129 = 38352^2 + 40623^2 .

It is not a de Polignac number, because 3121104033 - 224 = 3104326817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3121103997 and 3121104015.

It is not an unprimeable number, because it can be changed into a prime (3121104053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 590623 + ... + 595883.

It is an arithmetic number, because the mean of its divisors is an integer number (194444055).

Almost surely, 23121104033 is an apocalyptic number.

It is an amenable number.

3121104033 is a deficient number, since it is larger than the sum of its proper divisors (1545553287).

3121104033 is a wasteful number, since it uses less digits than its factorization.

3121104033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7569 (or 7566 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3121104033 is about 55866.8419816263. The cubic root of 3121104033 is about 1461.4010496922.

Adding to 3121104033 its reverse (3304011213), we get a palindrome (6425115246).

The spelling of 3121104033 in words is "three billion, one hundred twenty-one million, one hundred four thousand, thirty-three".

Divisors: 1 3 9 29 87 261 2273 5261 6819 15783 20457 47349 65917 152569 197751 457707 593253 1373121 11958253 35874759 107624277 346789337 1040368011 3121104033