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2971428 = 2231931283
BaseRepresentation
bin1011010101011100100100
312120222000220
423111130210
51230041203
6143404340
734154025
oct13253444
95528026
102971428
11174a529
12bb36b0
13800655
14574c4c
153da653
hex2d5724

2971428 has 24 divisors (see below), whose sum is σ = 6974688. Its totient is φ = 984576.

The previous prime is 2971399. The next prime is 2971459. The reversal of 2971428 is 8241792.

It is a happy number.

2971428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1675 + ... + 2957.

It is an arithmetic number, because the mean of its divisors is an integer number (290612).

22971428 is an apocalyptic number.

It is an amenable number.

2971428 is an abundant number, since it is smaller than the sum of its proper divisors (4003260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2971428 is a wasteful number, since it uses less digits than its factorization.

2971428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483 (or 1481 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 2971428 is about 1723.7830489943. The cubic root of 2971428 is about 143.7656295545.

The spelling of 2971428 in words is "two million, nine hundred seventy-one thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 193 386 579 772 1158 1283 2316 2566 3849 5132 7698 15396 247619 495238 742857 990476 1485714 2971428