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1996475385 = 35311427969
BaseRepresentation
bin111011011111111…
…1100101111111001
312011010201110100210
41312333330233321
513042044203020
6530035221333
7100321521642
oct16677745771
95133643323
101996475385
11934a5a563
12478747849
1325a811ca8
1414d21c6c9
15ba4183e0
hex76ffcbf9

1996475385 has 16 divisors (see below), whose sum is σ = 3204639360. Its totient is φ = 1061360640.

The previous prime is 1996475347. The next prime is 1996475387. The reversal of 1996475385 is 5835746991.

It is not a de Polignac number, because 1996475385 - 212 = 1996471289 is a prime.

It is a super-3 number, since 3×19964753853 (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1996475387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209320 + ... + 218649.

It is an arithmetic number, because the mean of its divisors is an integer number (200289960).

Almost surely, 21996475385 is an apocalyptic number.

1996475385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1996475385 is a deficient number, since it is larger than the sum of its proper divisors (1208163975).

1996475385 is a wasteful number, since it uses less digits than its factorization.

1996475385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428288.

The product of its digits is 8164800, while the sum is 57.

The square root of 1996475385 is about 44681.9357794624. The cubic root of 1996475385 is about 1259.1804919222.

The spelling of 1996475385 in words is "one billion, nine hundred ninety-six million, four hundred seventy-five thousand, three hundred eighty-five".

Divisors: 1 3 5 15 311 933 1555 4665 427969 1283907 2139845 6419535 133098359 399295077 665491795 1996475385