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2974739 = 13921401
BaseRepresentation
bin1011010110010000010011
312121010120112
423112100103
51230142424
6143431535
734166465
oct13262023
95533515
102974739
111751a69
12bb55ab
13802001
14576135
153db60e
hex2d6413

2974739 has 4 divisors (see below), whose sum is σ = 2996280. Its totient is φ = 2953200.

The previous prime is 2974723. The next prime is 2974747. The reversal of 2974739 is 9374792.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2974739 - 24 = 2974723 is a prime.

It is a d-powerful number, because it can be written as 211 + 94 + 75 + 42 + 77 + 313 + 96 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2974696 and 2974705.

It is not an unprimeable number, because it can be changed into a prime (2974759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10562 + ... + 10839.

It is an arithmetic number, because the mean of its divisors is an integer number (749070).

22974739 is an apocalyptic number.

2974739 is a deficient number, since it is larger than the sum of its proper divisors (21541).

2974739 is a wasteful number, since it uses less digits than its factorization.

2974739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21540.

The product of its digits is 95256, while the sum is 41.

The square root of 2974739 is about 1724.7431692864. The cubic root of 2974739 is about 143.8190080768.

The spelling of 2974739 in words is "two million, nine hundred seventy-four thousand, seven hundred thirty-nine".

Divisors: 1 139 21401 2974739