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2970887 = 23129169
BaseRepresentation
bin1011010101010100000111
312120221021212
423111110013
51230032022
6143402035
734152323
oct13252407
95527255
102970887
11174a087
12bb331b
1380032a
14574983
153da3e2
hex2d5507

2970887 has 4 divisors (see below), whose sum is σ = 3100080. Its totient is φ = 2841696.

The previous prime is 2970857. The next prime is 2970893. The reversal of 2970887 is 7880792.

2970887 is nontrivially palindromic in base 9.

2970887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2970887 - 212 = 2966791 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 (2970857) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 64562 + ... + 64607.

It is an arithmetic number, because the mean of its divisors is an integer number (775020).

22970887 is an apocalyptic number.

2970887 is a deficient number, since it is larger than the sum of its proper divisors (129193).

2970887 is a wasteful number, since it uses less digits than its factorization.

2970887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129192.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 2970887 is about 1723.6261195515. The cubic root of 2970887 is about 143.7569040162.

The spelling of 2970887 in words is "two million, nine hundred seventy thousand, eight hundred eighty-seven".

Divisors: 1 23 129169 2970887