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1900041745 = 5754286907
BaseRepresentation
bin111000101000000…
…0101011000010001
311220102021010021111
41301100011120101
512342402313440
6512312253321
765041042210
oct16120053021
94812233244
101900041745
11895584538
124503a1241
13243849874
141404b9077
15b1c1a4ea
hex71405611

1900041745 has 8 divisors (see below), whose sum is σ = 2605771584. Its totient is φ = 1302885744.

The previous prime is 1900041733. The next prime is 1900041751. The reversal of 1900041745 is 5471400091.

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 1900041745 - 29 = 1900041233 is a prime.

It is a super-2 number, since 2×19000417452 = 7220317265485290050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27143419 + ... + 27143488.

It is an arithmetic number, because the mean of its divisors is an integer number (325721448).

Almost surely, 21900041745 is an apocalyptic number.

It is an amenable number.

1900041745 is a deficient number, since it is larger than the sum of its proper divisors (705729839).

1900041745 is an equidigital number, since it uses as much as digits as its factorization.

1900041745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54286919.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1900041745 is about 43589.4682807671. The cubic root of 1900041745 is about 1238.5714004031.

The spelling of 1900041745 in words is "one billion, nine hundred million, forty-one thousand, seven hundred forty-five".

Divisors: 1 5 7 35 54286907 271434535 380008349 1900041745