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3220130440 = 235199404539
BaseRepresentation
bin1011111111101111…
…0100101010001000
322022102020120112101
42333323310222020
523043323133230
61251310323144
7142540441252
oct27773645210
98272216471
103220130440
11140275272a
1275a4b94b4
133c4199437
14227948cd2
1513ca77aca
hexbfef4a88

3220130440 has 32 divisors (see below), whose sum is σ = 7281720000. Its totient is φ = 1281576384.

The previous prime is 3220130359. The next prime is 3220130443. The reversal of 3220130440 is 440310223.

It is a super-2 number, since 2×32201304402 = 20738480101229187200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3220130443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194310 + ... + 210229.

It is an arithmetic number, because the mean of its divisors is an integer number (227553750).

Almost surely, 23220130440 is an apocalyptic number.

It is an amenable number.

3220130440 is an abundant number, since it is smaller than the sum of its proper divisors (4061589560).

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

3220130440 is a wasteful number, since it uses less digits than its factorization.

3220130440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404749 (or 404745 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 3220130440 is about 56746.1931762828. The cubic root of 3220130440 is about 1476.6961913789.

Adding to 3220130440 its reverse (440310223), we get a palindrome (3660440663).

The spelling of 3220130440 in words is "three billion, two hundred twenty million, one hundred thirty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 199 398 796 995 1592 1990 3980 7960 404539 809078 1618156 2022695 3236312 4045390 8090780 16181560 80503261 161006522 322013044 402516305 644026088 805032610 1610065220 3220130440