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3230440000 = 265480761
BaseRepresentation
bin1100000010001100…
…1001101001000000
322100010122100120221
43000203021221000
523103443040000
61252315312424
7143024200264
oct30043115100
98303570527
103230440000
111408554427
12761a4b714
133c6368b78
142290700a4
1513d91261a
hexc08c9a40

3230440000 has 70 divisors (see below), whose sum is σ = 8010540494. Its totient is φ = 1292160000.

The previous prime is 3230439959. The next prime is 3230440043. The reversal of 3230440000 is 440323.

It can be written as a sum of positive squares in 5 ways, for example, as 1711311424 + 1519128576 = 41368^2 + 38976^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 381 + ... + 80380.

Almost surely, 23230440000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3230440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4005270247).

3230440000 is an abundant number, since it is smaller than the sum of its proper divisors (4780100494).

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

3230440000 is an frugal number, since it uses more digits than its factorization.

3230440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80793 (or 80768 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 3230440000 is about 56836.9598060980. The cubic root of 3230440000 is about 1478.2704412399.

Adding to 3230440000 its reverse (440323), we get a palindrome (3230880323).

The spelling of 3230440000 in words is "three billion, two hundred thirty million, four hundred forty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 625 800 1000 1250 1600 2000 2500 4000 5000 8000 10000 20000 40000 80761 161522 323044 403805 646088 807610 1292176 1615220 2019025 2584352 3230440 4038050 5168704 6460880 8076100 10095125 12921760 16152200 20190250 25843520 32304400 40380500 50475625 64608800 80761000 100951250 129217600 161522000 201902500 323044000 403805000 646088000 807610000 1615220000 3230440000