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2971942 = 219197397
BaseRepresentation
bin1011010101100100100110
312120222201221
423111210212
51230100232
6143410554
734155361
oct13254446
95528657
102971942
11174a956
12bb3a5a
1380095c
145750d8
153da897
hex2d5926

2971942 has 16 divisors (see below), whose sum is σ = 4728240. Its totient is φ = 1397088.

The previous prime is 2971909. The next prime is 2971963. The reversal of 2971942 is 2491792.

It is a happy number.

2971942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2971898 and 2971907.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7288 + ... + 7684.

It is an arithmetic number, because the mean of its divisors is an integer number (295515).

22971942 is an apocalyptic number.

2971942 is a deficient number, since it is larger than the sum of its proper divisors (1756298).

2971942 is a wasteful number, since it uses less digits than its factorization.

2971942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615.

The product of its digits is 9072, while the sum is 34.

The square root of 2971942 is about 1723.9321332349. The cubic root of 2971942 is about 143.7739186412.

The spelling of 2971942 in words is "two million, nine hundred seventy-one thousand, nine hundred forty-two".

Divisors: 1 2 19 38 197 394 397 794 3743 7486 7543 15086 78209 156418 1485971 2971942