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2955421 = 7422203
BaseRepresentation
bin1011010001100010011101
312120011002001
423101202131
51224033141
6143202301
734056250
oct13214235
95504061
102955421
1117394a7
12ba6391
137c6291
1456d097
153d5a31
hex2d189d

2955421 has 4 divisors (see below), whose sum is σ = 3377632. Its totient is φ = 2533212.

The previous prime is 2955397. The next prime is 2955427. The reversal of 2955421 is 1245592.

2955421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2955421 - 211 = 2953373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2955421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2955427) 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 3 ways as a sum of consecutive naturals, for example, 211095 + ... + 211108.

It is an arithmetic number, because the mean of its divisors is an integer number (844408).

22955421 is an apocalyptic number.

It is an amenable number.

2955421 is a deficient number, since it is larger than the sum of its proper divisors (422211).

2955421 is an equidigital number, since it uses as much as digits as its factorization.

2955421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422210.

The product of its digits is 3600, while the sum is 28.

The square root of 2955421 is about 1719.1337935135. The cubic root of 2955421 is about 143.5070107903.

The spelling of 2955421 in words is "two million, nine hundred fifty-five thousand, four hundred twenty-one".

Divisors: 1 7 422203 2955421