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1995604468 = 2211137394721
BaseRepresentation
bin111011011110010…
…1000000111110100
312011002002012200121
41312330220013310
513041333320333
6530004421324
7100311233554
oct16674500764
95132065617
101995604468
119345151a0
124783a7844
1325a598760
1414d073164
15ba2e532d
hex76f281f4

1995604468 has 48 divisors (see below), whose sum is σ = 4109273280. Its totient is φ = 836006400.

The previous prime is 1995604433. The next prime is 1995604469. The reversal of 1995604468 is 8644065991.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a house number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995604469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420348 + ... + 425068.

It is an arithmetic number, because the mean of its divisors is an integer number (85609860).

Almost surely, 21995604468 is an apocalyptic number.

It is an amenable number.

1995604468 is an abundant number, since it is smaller than the sum of its proper divisors (2113668812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1995604468 is a wasteful number, since it uses less digits than its factorization.

1995604468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5488 (or 5486 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 1995604468 is about 44672.1889770358. The cubic root of 1995604468 is about 1258.9973690038.

The spelling of 1995604468 in words is "one billion, nine hundred ninety-five million, six hundred four thousand, four hundred sixty-eight".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 739 1478 2956 4721 8129 9442 9607 16258 18884 19214 32516 38428 51931 61373 103862 105677 122746 207724 211354 245492 422708 675103 1350206 2700412 3488819 6977638 13955276 38377009 45354647 76754018 90709294 153508036 181418588 498901117 997802234 1995604468