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2020512412531 = 5563136319901
BaseRepresentation
bin11101011001101111111…
…011001011001101110011
321011011021222120101001201
4131121233323023031303
5231101002134200111
64144113253112031
7265656116064034
oct35315773131563
97134258511051
102020512412531
11709992644a38
12287709628617
131186c214ba92
146db16c3ca8b
1537858c146c1
hex1d66fecb373

2020512412531 has 4 divisors (see below), whose sum is σ = 2020548788064. Its totient is φ = 2020476037000.

The previous prime is 2020512412481. The next prime is 2020512412579. The reversal of 2020512412531 is 1352142150202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2020512412531 - 29 = 2020512412019 is a prime.

It is a super-2 number, since 2×20205124125312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020512412531.

It is not an unprimeable number, because it can be changed into a prime (2020512412931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18104320 + ... + 18215581.

It is an arithmetic number, because the mean of its divisors is an integer number (505137197016).

Almost surely, 22020512412531 is an apocalyptic number.

2020512412531 is a deficient number, since it is larger than the sum of its proper divisors (36375533).

2020512412531 is an equidigital number, since it uses as much as digits as its factorization.

2020512412531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36375532.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 2020512412531 its reverse (1352142150202), we get a palindrome (3372654562733).

The spelling of 2020512412531 in words is "two trillion, twenty billion, five hundred twelve million, four hundred twelve thousand, five hundred thirty-one".

Divisors: 1 55631 36319901 2020512412531