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3201242020 = 225181884321
BaseRepresentation
bin1011111011001111…
…0001001110100100
322021002200221111021
42332303301032210
523024004221040
61245353420524
7142221052054
oct27663611644
98232627437
103201242020
1113a3021569
1275410a744
133c02b4c62
1422522d564
1513b09624a
hexbecf13a4

3201242020 has 24 divisors (see below), whose sum is σ = 6759757368. Its totient is φ = 1273420800.

The previous prime is 3201241973. The next prime is 3201242047. The reversal of 3201242020 is 202421023.

It can be written as a sum of positive squares in 4 ways, for example, as 427745124 + 2773496896 = 20682^2 + 52664^2 .

It is a super-2 number, since 2×32012420202 = 20495900941227360800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3201241985 and 3201242003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438541 + ... + 445780.

It is an arithmetic number, because the mean of its divisors is an integer number (281656557).

Almost surely, 23201242020 is an apocalyptic number.

It is an amenable number.

3201242020 is an abundant number, since it is smaller than the sum of its proper divisors (3558515348).

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

3201242020 is a wasteful number, since it uses less digits than its factorization.

3201242020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884511 (or 884509 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3201242020 is about 56579.5194394579. The cubic root of 3201242020 is about 1473.8032264956.

Adding to 3201242020 its reverse (202421023), we get a palindrome (3403663043).

The spelling of 3201242020 in words is "three billion, two hundred one million, two hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 181 362 724 905 1810 3620 884321 1768642 3537284 4421605 8843210 17686420 160062101 320124202 640248404 800310505 1600621010 3201242020