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3121341 = 31040447
BaseRepresentation
bin1011111010000010111101
312212120200020
423322002331
51244340331
6150522353
735350056
oct13720275
95776606
103121341
111842123
1210663b9
13853962
145b372d
15419c96
hex2fa0bd

3121341 has 4 divisors (see below), whose sum is σ = 4161792. Its totient is φ = 2080892.

The previous prime is 3121333. The next prime is 3121361. The reversal of 3121341 is 1431213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3121341 - 23 = 3121333 is a prime.

It is an Ulam number.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 3121341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121361) 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 3 ways as a sum of consecutive naturals, for example, 520221 + ... + 520226.

It is an arithmetic number, because the mean of its divisors is an integer number (1040448).

Almost surely, 23121341 is an apocalyptic number.

It is an amenable number.

3121341 is a deficient number, since it is larger than the sum of its proper divisors (1040451).

3121341 is a wasteful number, since it uses less digits than its factorization.

3121341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040450.

The product of its digits is 72, while the sum is 15.

The square root of 3121341 is about 1766.7317283617. The cubic root of 3121341 is about 146.1438033940.

Adding to 3121341 its reverse (1431213), we get a palindrome (4552554).

It can be divided in two parts, 312 and 1341, that added together give a triangular number (1653 = T57).

The spelling of 3121341 in words is "three million, one hundred twenty-one thousand, three hundred forty-one".

Divisors: 1 3 1040447 3121341