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1995690395 = 52017197887
BaseRepresentation
bin111011011110011…
…1101000110011011
312011002020120120002
41312330331012123
513041344043040
6530010323215
7100312042226
oct16674750633
95132216502
101995690395
11934573806
1247842950b
1325a5c88ba
1414d0965bd
15ba310a15
hex76f3d19b

1995690395 has 8 divisors (see below), whose sum is σ = 2396027904. Its totient is φ = 1595752704.

The previous prime is 1995690377. The next prime is 1995690397. The reversal of 1995690395 is 5930965991.

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 1995690395 - 26 = 1995690331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1995690395.

It is not an unprimeable number, because it can be changed into a prime (1995690397) 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, 88859 + ... + 109028.

It is an arithmetic number, because the mean of its divisors is an integer number (299503488).

Almost surely, 21995690395 is an apocalyptic number.

1995690395 is a deficient number, since it is larger than the sum of its proper divisors (400337509).

1995690395 is a wasteful number, since it uses less digits than its factorization.

1995690395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199909.

The product of its (nonzero) digits is 2952450, while the sum is 56.

The square root of 1995690395 is about 44673.1507171813. The cubic root of 1995690395 is about 1259.0154387693.

The spelling of 1995690395 in words is "one billion, nine hundred ninety-five million, six hundred ninety thousand, three hundred ninety-five".

Divisors: 1 5 2017 10085 197887 989435 399138079 1995690395