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2972291 = 7260659
BaseRepresentation
bin1011010101101010000011
312121000012212
423111222003
51230103131
6143412335
734156400
oct13255203
95530185
102972291
111750143
12bb40ab
13800b6a
145752a7
153daa2b
hex2d5a83

2972291 has 6 divisors (see below), whose sum is σ = 3457620. Its totient is φ = 2547636.

The previous prime is 2972287. The next prime is 2972309. The reversal of 2972291 is 1922792.

2972291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2972291 - 22 = 2972287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2972251) 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 5 ways as a sum of consecutive naturals, for example, 30281 + ... + 30378.

It is an arithmetic number, because the mean of its divisors is an integer number (576270).

22972291 is an apocalyptic number.

2972291 is a deficient number, since it is larger than the sum of its proper divisors (485329).

2972291 is an equidigital number, since it uses as much as digits as its factorization.

2972291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60673 (or 60666 counting only the distinct ones).

The product of its digits is 4536, while the sum is 32.

The square root of 2972291 is about 1724.0333523456. The cubic root of 2972291 is about 143.7795462896.

The spelling of 2972291 in words is "two million, nine hundred seventy-two thousand, two hundred ninety-one".

Divisors: 1 7 49 60659 424613 2972291