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8272008020 = 225413600401
BaseRepresentation
bin1111011010000110…
…01101001101010100
3210100111020112202102
413231003031031110
5113420113224040
63444453501232
7411662623313
oct75503151524
923314215672
108272008020
113565373071
12172a341818
13a1a9bcc03
1458687227a
1533632a515
hex1ed0cd354

8272008020 has 12 divisors (see below), whose sum is σ = 17371216884. Its totient is φ = 3308803200.

The previous prime is 8272007999. The next prime is 8272008023. The reversal of 8272008020 is 208002728.

It can be written as a sum of positive squares in 2 ways, for example, as 5397547024 + 2874460996 = 73468^2 + 53614^2 .

It is a super-2 number, since 2×82720080202 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8272008023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206800181 + ... + 206800220.

It is an arithmetic number, because the mean of its divisors is an integer number (1447601407).

Almost surely, 28272008020 is an apocalyptic number.

It is an amenable number.

8272008020 is an abundant number, since it is smaller than the sum of its proper divisors (9099208864).

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

8272008020 is a wasteful number, since it uses less digits than its factorization.

8272008020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413600410 (or 413600408 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 8272008020 is about 90950.5800971055. The cubic root of 8272008020 is about 2022.4151764096.

The spelling of 8272008020 in words is "eight billion, two hundred seventy-two million, eight thousand, twenty".

Divisors: 1 2 4 5 10 20 413600401 827200802 1654401604 2068002005 4136004010 8272008020