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2007198145 = 57315533541
BaseRepresentation
bin111011110100011…
…0110100111000001
312011212220020020001
41313220312213001
513102320320040
6531101120001
7100511621431
oct16750664701
95155806201
102007198145
11940013747
12480259001
1325cac7814
141508102c1
15bb33559a
hex77a369c1

2007198145 has 16 divisors (see below), whose sum is σ = 2443894992. Its totient is φ = 1582295040.

The previous prime is 2007198119. The next prime is 2007198169. The reversal of 2007198145 is 5418917002.

It can be written as a sum of positive squares in 8 ways, for example, as 184932801 + 1822265344 = 13599^2 + 42688^2 .

It is not a de Polignac number, because 2007198145 - 219 = 2006673857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 565075 + ... + 568615.

It is an arithmetic number, because the mean of its divisors is an integer number (152743437).

Almost surely, 22007198145 is an apocalyptic number.

It is an amenable number.

2007198145 is a deficient number, since it is larger than the sum of its proper divisors (436696847).

2007198145 is a wasteful number, since it uses less digits than its factorization.

2007198145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5172.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 2007198145 is about 44801.7649763935. The cubic root of 2007198145 is about 1261.4307558947.

The spelling of 2007198145 in words is "two billion, seven million, one hundred ninety-eight thousand, one hundred forty-five".

Divisors: 1 5 73 365 1553 3541 7765 17705 113369 258493 566845 1292465 5499173 27495865 401439629 2007198145