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2979305 = 57233701
BaseRepresentation
bin1011010111010111101001
312121100211122
423113113221
51230314210
6143505025
734216010
oct13272751
95540748
102979305
11175543a
12bb8175
13804104
14577a77
153dcb55
hex2d75e9

2979305 has 16 divisors (see below), whose sum is σ = 4264704. Its totient is φ = 1953600.

The previous prime is 2979299. The next prime is 2979307. The reversal of 2979305 is 5039792.

It is not a de Polignac number, because 2979305 - 28 = 2979049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2979307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1046 + ... + 2655.

It is an arithmetic number, because the mean of its divisors is an integer number (266544).

22979305 is an apocalyptic number.

It is an amenable number.

2979305 is a deficient number, since it is larger than the sum of its proper divisors (1285399).

2979305 is a wasteful number, since it uses less digits than its factorization.

2979305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 2979305 is about 1726.0663370798. The cubic root of 2979305 is about 143.8925542370.

The spelling of 2979305 in words is "two million, nine hundred seventy-nine thousand, three hundred five".

Divisors: 1 5 7 23 35 115 161 805 3701 18505 25907 85123 129535 425615 595861 2979305