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2970305 = 51345697
BaseRepresentation
bin1011010101001011000001
312120220111022
423111023001
51230022210
6143355225
734150532
oct13251301
95526438
102970305
1117496a8
12bb2b15
137ccca0
14574689
153da155
hex2d52c1

2970305 has 8 divisors (see below), whose sum is σ = 3838632. Its totient is φ = 2193408.

The previous prime is 2970301. The next prime is 2970313. The reversal of 2970305 is 5030792.

It can be written as a sum of positive squares in 4 ways, for example, as 8464 + 2961841 = 92^2 + 1721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2970305 - 22 = 2970301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2970301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22784 + ... + 22913.

It is an arithmetic number, because the mean of its divisors is an integer number (479829).

22970305 is an apocalyptic number.

It is an amenable number.

2970305 is a deficient number, since it is larger than the sum of its proper divisors (868327).

2970305 is a wasteful number, since it uses less digits than its factorization.

2970305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45715.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 2970305 is about 1723.4572811648. The cubic root of 2970305 is about 143.7475160251.

The spelling of 2970305 in words is "two million, nine hundred seventy thousand, three hundred five".

Divisors: 1 5 13 65 45697 228485 594061 2970305