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2839415040 = 28335711297
BaseRepresentation
bin1010100100111110…
…0000100100000000
321022212212020012000
42221033200210000
521303342240130
61145430304000
7130235425650
oct25117404400
97285766160
102839415040
111227859600
12672ab8000
1336334a757
141cd164360
15119423260
hexa93e0900

2839415040 has 864 divisors, whose sum is σ = 12787918080. Its totient is φ = 583925760.

The previous prime is 2839415003. The next prime is 2839415041. The reversal of 2839415040 is 405149382.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2839414986 and 2839415004.

It is not an unprimeable number, because it can be changed into a prime (2839415041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 29272272 + ... + 29272368.

Almost surely, 22839415040 is an apocalyptic number.

2839415040 is a gapful number since it is divisible by the number (20) 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 2839415040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6393959040).

2839415040 is an abundant number, since it is smaller than the sum of its proper divisors (9948503040).

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

2839415040 is a wasteful number, since it uses less digits than its factorization.

2839415040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2839415040 is about 53286.1618058573. The cubic root of 2839415040 is about 1416.0425152417.

It can be divided in two parts, 28394 and 15040, that added together give a palindrome (43434).

The spelling of 2839415040 in words is "two billion, eight hundred thirty-nine million, four hundred fifteen thousand, forty".