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2070146389 = 17281433357
BaseRepresentation
bin111101101100011…
…1110110101010101
312100021100022222111
41323120332311111
513214424141024
6541230231021
7102204645133
oct17330766525
95307308874
102070146389
119725a8693
12499355471
1326cb676bc
14158d18753
15c1b1ba94
hex7b63ed55

2070146389 has 8 divisors (see below), whose sum is σ = 2199725208. Its totient is φ = 1941434880.

The previous prime is 2070146383. The next prime is 2070146401. The reversal of 2070146389 is 9836410702.

It can be written as a sum of positive squares in 4 ways, for example, as 584043889 + 1486102500 = 24167^2 + 38550^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2070146389 - 29 = 2070145877 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 (2070146383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211902 + ... + 221455.

It is an arithmetic number, because the mean of its divisors is an integer number (274965651).

Almost surely, 22070146389 is an apocalyptic number.

It is an amenable number.

2070146389 is a deficient number, since it is larger than the sum of its proper divisors (129578819).

2070146389 is a wasteful number, since it uses less digits than its factorization.

2070146389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433655.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 2070146389 is about 45498.8614033362. The cubic root of 2070146389 is about 1274.4819402923.

The spelling of 2070146389 in words is "two billion, seventy million, one hundred forty-six thousand, three hundred eighty-nine".

Divisors: 1 17 281 4777 433357 7367069 121773317 2070146389