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2070193021 = 13608926153
BaseRepresentation
bin111101101100100…
…1010001101111101
312100021102200221121
41323121022031331
513214432134041
6541231230541
7102205231111
oct17331121575
95307380847
102070193021
1197262a726
12499378451
1326cb829b0
14158d2b741
15c1b2a7d1
hex7b64a37d

2070193021 has 8 divisors (see below), whose sum is σ = 2229890040. Its totient is φ = 1910560512.

The previous prime is 2070193019. The next prime is 2070193049. The reversal of 2070193021 is 1203910702.

It can be written as a sum of positive squares in 4 ways, for example, as 52925625 + 2017267396 = 7275^2 + 44914^2 .

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 2070193021 - 21 = 2070193019 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 (2070191021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66081 + ... + 92233.

It is an arithmetic number, because the mean of its divisors is an integer number (278736255).

Almost surely, 22070193021 is an apocalyptic number.

It is an amenable number.

2070193021 is a deficient number, since it is larger than the sum of its proper divisors (159697019).

2070193021 is a wasteful number, since it uses less digits than its factorization.

2070193021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32255.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 2070193021 is about 45499.3738528345. The cubic root of 2070193021 is about 1274.4915098564.

The spelling of 2070193021 in words is "two billion, seventy million, one hundred ninety-three thousand, twenty-one".

Divisors: 1 13 6089 26153 79157 339989 159245617 2070193021