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1995445430 = 251118140413
BaseRepresentation
bin111011011110000…
…0001010010110110
312011001210010112022
41312330001102312
513041313223210
6530001153142
7100310002106
oct16674012266
95131703468
101995445430
11934416760
1247832b7b2
1325a541254
1414d031206
15ba2b3155
hex76f014b6

1995445430 has 16 divisors (see below), whose sum is σ = 3918329424. Its totient is φ = 725616480.

The previous prime is 1995445429. The next prime is 1995445433. The reversal of 1995445430 is 345445991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995445433) 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, 9070097 + ... + 9070316.

It is an arithmetic number, because the mean of its divisors is an integer number (244895589).

Almost surely, 21995445430 is an apocalyptic number.

1995445430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1995445430 is a deficient number, since it is larger than the sum of its proper divisors (1922883994).

1995445430 is a wasteful number, since it uses less digits than its factorization.

1995445430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18140431.

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 1995445430 is about 44670.4088855251. The cubic root of 1995445430 is about 1258.9639232073.

The spelling of 1995445430 in words is "one billion, nine hundred ninety-five million, four hundred forty-five thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 18140413 36280826 90702065 181404130 199544543 399089086 997722715 1995445430