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2156200010 = 25697130931
BaseRepresentation
bin1000000010000101…
…0000000001001010
312120021021022100122
42000201100001022
513403441400020
6553542503242
7104301253256
oct20041200112
95507238318
102156200010
11a07133a88
12502134b22
132849372c3
14166519266
15c9469125
hex8085004a

2156200010 has 16 divisors (see below), whose sum is σ = 3881842272. Its totient is φ = 862328400.

The previous prime is 2156200003. The next prime is 2156200019. The reversal of 2156200010 is 100026512.

It is not an unprimeable number, because it can be changed into a prime (2156200019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54245 + ... + 85175.

It is an arithmetic number, because the mean of its divisors is an integer number (242615142).

Almost surely, 22156200010 is an apocalyptic number.

2156200010 is a deficient number, since it is larger than the sum of its proper divisors (1725642262).

2156200010 is a wasteful number, since it uses less digits than its factorization.

2156200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37909.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2156200010 is about 46434.9007751713. The cubic root of 2156200010 is about 1291.9023292153.

Adding to 2156200010 its reverse (100026512), we get a palindrome (2256226522).

The spelling of 2156200010 in words is "two billion, one hundred fifty-six million, two hundred thousand, ten".

Divisors: 1 2 5 10 6971 13942 30931 34855 61862 69710 154655 309310 215620001 431240002 1078100005 2156200010