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2139213202 = 27278954787
BaseRepresentation
bin111111110000001…
…1100110110010010
312112002022021211121
41333200130312102
513340114310302
6552134432454
7104004004120
oct17740346622
95462267747
102139213202
119a85915a5
124b850272a
1328126a539
14164176910
15c7c10e37
hex7f81cd92

2139213202 has 16 divisors (see below), whose sum is σ = 3668604480. Its totient is φ = 916460208.

The previous prime is 2139213163. The next prime is 2139213203. The reversal of 2139213202 is 2023129312.

It is a super-2 number, since 2×21392132022 = 9152466247222185608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2139213203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11653 + ... + 66439.

It is an arithmetic number, because the mean of its divisors is an integer number (229287780).

Almost surely, 22139213202 is an apocalyptic number.

2139213202 is a deficient number, since it is larger than the sum of its proper divisors (1529391278).

2139213202 is a wasteful number, since it uses less digits than its factorization.

2139213202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57585.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2139213202 is about 46251.6291821164. The cubic root of 2139213202 is about 1288.5007926346.

The spelling of 2139213202 in words is "two billion, one hundred thirty-nine million, two hundred thirteen thousand, two hundred two".

Divisors: 1 2 7 14 2789 5578 19523 39046 54787 109574 383509 767018 152800943 305601886 1069606601 2139213202