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2078052197 = 13159850169
BaseRepresentation
bin111101111011100…
…1000111101100101
312100211012222201012
41323313020331211
513223440132242
6542111512005
7102332103134
oct17367107545
95324188635
102078052197
11977008411
1249bb28605
132716a4cb0
14159db591b
15c267e282
hex7bdc8f65

2078052197 has 4 divisors (see below), whose sum is σ = 2237902380. Its totient is φ = 1918202016.

The previous prime is 2078052187. The next prime is 2078052203. The reversal of 2078052197 is 7912508702.

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

It can be written as a sum of positive squares in 2 ways, for example, as 545642881 + 1532409316 = 23359^2 + 39146^2 .

It is a cyclic number.

It is not a de Polignac number, because 2078052197 - 26 = 2078052133 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 (2078052187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79925072 + ... + 79925097.

It is an arithmetic number, because the mean of its divisors is an integer number (559475595).

Almost surely, 22078052197 is an apocalyptic number.

It is an amenable number.

2078052197 is a deficient number, since it is larger than the sum of its proper divisors (159850183).

2078052197 is a wasteful number, since it uses less digits than its factorization.

2078052197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159850182.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 2078052197 is about 45585.6577993561. The cubic root of 2078052197 is about 1276.1022782457.

The spelling of 2078052197 in words is "two billion, seventy-eight million, fifty-two thousand, one hundred ninety-seven".

Divisors: 1 13 159850169 2078052197