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3121513041 = 39631108037
BaseRepresentation
bin1011101000001110…
…1000001001010001
322001112200021220010
42322003220021101
522343101404131
61233424505133
7140232265053
oct27203501121
98045607803
103121513041
111362015a49
1273147b1a9
133a991b04a
142187d78d3
15134097b46
hexba0e8251

3121513041 has 8 divisors (see below), whose sum is σ = 4162488064. Its totient is φ = 2080773360.

The previous prime is 3121513027. The next prime is 3121513051. The reversal of 3121513041 is 1403151213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3121513041 - 27 = 3121512913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3121512999 and 3121513017.

It is not an unprimeable number, because it can be changed into a prime (3121513001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25126 + ... + 82911.

It is an arithmetic number, because the mean of its divisors is an integer number (520311008).

Almost surely, 23121513041 is an apocalyptic number.

It is an amenable number.

3121513041 is a deficient number, since it is larger than the sum of its proper divisors (1040975023).

3121513041 is a wasteful number, since it uses less digits than its factorization.

3121513041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117671.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 3121513041 is about 55870.5024230139. The cubic root of 3121513041 is about 1461.4648837934.

Adding to 3121513041 its reverse (1403151213), we get a palindrome (4524664254).

The spelling of 3121513041 in words is "three billion, one hundred twenty-one million, five hundred thirteen thousand, forty-one".

Divisors: 1 3 9631 28893 108037 324111 1040504347 3121513041