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2082615840 = 253351925373
BaseRepresentation
bin111110000100010…
…0011001000100000
312101010210211212000
41330020203020200
513231122201330
6542353404000
7102415641204
oct17410431040
95333724760
102082615840
11979645118
124a1569600
13272612286
1415a842b04
15c2c81560
hex7c223220

2082615840 has 192 divisors, whose sum is σ = 7673097600. Its totient is φ = 526113792.

The previous prime is 2082615809. The next prime is 2082615863. The reversal of 2082615840 is 485162802.

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 = 2082615795 and 2082615804.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 69394 + ... + 94766.

It is an arithmetic number, because the mean of its divisors is an integer number (39964050).

Almost surely, 22082615840 is an apocalyptic number.

2082615840 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 2082615840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3836548800).

2082615840 is an abundant number, since it is smaller than the sum of its proper divisors (5590481760).

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

2082615840 is a wasteful number, since it uses less digits than its factorization.

2082615840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25416 (or 25402 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 2082615840 is about 45635.6860362589. The cubic root of 2082615840 is about 1277.0357513119.

The spelling of 2082615840 in words is "two billion, eighty-two million, six hundred fifteen thousand, eight hundred forty".