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1995424704 = 263271338069
BaseRepresentation
bin111011011101111…
…1100001111000000
312011001202002002200
41312323330033000
513041312042304
6530000513200
7100306554510
oct16673741700
95131662080
101995424704
11934402129
1247831b800
1325a5349a0
1414d027840
15ba2abe39
hex76efc3c0

1995424704 has 168 divisors, whose sum is σ = 7039599840. Its totient is φ = 526252032.

The previous prime is 1995424699. The next prime is 1995424787. The reversal of 1995424704 is 4074245991.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-3 number, since 3×19954247043 (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1995424704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33382 + ... + 71450.

It is an arithmetic number, because the mean of its divisors is an integer number (41902380).

Almost surely, 21995424704 is an apocalyptic number.

1995424704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1995424704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3519799920).

1995424704 is an abundant number, since it is smaller than the sum of its proper divisors (5044175136).

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

1995424704 is a wasteful number, since it uses less digits than its factorization.

1995424704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38107 (or 38094 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1995424704 is about 44670.1768968962. The cubic root of 1995424704 is about 1258.9595643849.

The spelling of 1995424704 in words is "one billion, nine hundred ninety-five million, four hundred twenty-four thousand, seven hundred four".