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3320312020 = 2254135911279
BaseRepresentation
bin1100010111100111…
…1111000011010100
322120101202022211021
43011321333003110
523244444441040
61305245450524
7145165120654
oct30571770324
98511668737
103320312020
111454258623
12787b70a44
1340bb7478c
14236d86364
1514676624a
hexc5e7f0d4

3320312020 has 48 divisors (see below), whose sum is σ = 7163251200. Its totient is φ = 1292007680.

The previous prime is 3320312011. The next prime is 3320312027. The reversal of 3320312020 is 202130233.

It is a super-2 number, since 2×33203120202 = 22048943820312960800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3320311985 and 3320312003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3320312027) 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, 288741 + ... + 300019.

It is an arithmetic number, because the mean of its divisors is an integer number (149234400).

Almost surely, 23320312020 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 3320312020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3581625600).

3320312020 is an abundant number, since it is smaller than the sum of its proper divisors (3842939180).

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

3320312020 is a wasteful number, since it uses less digits than its factorization.

3320312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11688 (or 11686 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 3320312020 is about 57622.1486930156. The cubic root of 3320312020 is about 1491.8539180194.

Adding to 3320312020 its reverse (202130233), we get a palindrome (3522442253).

The spelling of 3320312020 in words is "three billion, three hundred twenty million, three hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 359 410 718 820 1436 1795 3590 7180 11279 14719 22558 29438 45116 56395 58876 73595 112790 147190 225580 294380 462439 924878 1849756 2312195 4049161 4624390 8098322 9248780 16196644 20245805 40491610 80983220 166015601 332031202 664062404 830078005 1660156010 3320312020