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1896540001 = 7126711831
BaseRepresentation
bin111000100001010…
…1110011101100001
311220011200012210021
41301002232131201
512341003240001
6512105233441
764666216066
oct16102563541
94804605707
101896540001
11893602634
1244b192881
13242bc1a25
1413dc46c6d
15b1777ba1
hex710ae761

1896540001 has 4 divisors (see below), whose sum is σ = 1923251904. Its totient is φ = 1869828100.

The previous prime is 1896539987. The next prime is 1896540017. The reversal of 1896540001 is 1000456981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1000456981 = 1025397577.

It is a cyclic number.

It is not a de Polignac number, because 1896540001 - 219 = 1896015713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1896540031) 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, 13355845 + ... + 13355986.

It is an arithmetic number, because the mean of its divisors is an integer number (480812976).

Almost surely, 21896540001 is an apocalyptic number.

It is an amenable number.

1896540001 is a deficient number, since it is larger than the sum of its proper divisors (26711903).

1896540001 is an equidigital number, since it uses as much as digits as its factorization.

1896540001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26711902.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1896540001 is about 43549.2824395535. The cubic root of 1896540001 is about 1237.8100439488.

Adding to 1896540001 its reverse (1000456981), we get a palindrome (2896996982).

The spelling of 1896540001 in words is "one billion, eight hundred ninety-six million, five hundred forty thousand, one".

Divisors: 1 71 26711831 1896540001