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2161010 = 25316971
BaseRepresentation
bin1000001111100101110010
311001210100102
420033211302
51023123020
6114152402
724240215
oct10174562
94053312
102161010
111246665
12882702
135a8807
1440377c
152ca475
hex20f972

2161010 has 16 divisors (see below), whose sum is σ = 4015872. Its totient is φ = 836400.

The previous prime is 2161007. The next prime is 2161031. The reversal of 2161010 is 101612.

2161010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2160982 and 2161000.

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, 3176 + ... + 3795.

It is an arithmetic number, because the mean of its divisors is an integer number (250992).

22161010 is an apocalyptic number.

2161010 is a deficient number, since it is larger than the sum of its proper divisors (1854862).

2161010 is a wasteful number, since it uses less digits than its factorization.

2161010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7009.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2161010 is about 1470.0374144898. The cubic root of 2161010 is about 129.2862262164.

Adding to 2161010 its reverse (101612), we get a palindrome (2262622).

The spelling of 2161010 in words is "two million, one hundred sixty-one thousand, ten".

Divisors: 1 2 5 10 31 62 155 310 6971 13942 34855 69710 216101 432202 1080505 2161010