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2020656452401 = 2657972178233
BaseRepresentation
bin11101011001111000100…
…000101001001100110001
321011011200000121100121201
4131121320200221030301
5231101301022434101
64144135440251201
7265662515311246
oct35317040511461
97134600540551
102020656452401
11709a56986254
12287749910b01
13118715c41b82
146db2c0155cd
15378666b7e01
hex1d678829331

2020656452401 has 8 divisors (see below), whose sum is σ = 2021650739784. Its totient is φ = 2019662346240.

The previous prime is 2020656452389. The next prime is 2020656452447. The reversal of 2020656452401 is 1042546560202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 67300811776 + 1953355640625 = 259424^2 + 1397625^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2020656452401 - 215 = 2020656419633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020656450401) 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, 25789581 + ... + 25867813.

It is an arithmetic number, because the mean of its divisors is an integer number (252706342473).

Almost surely, 22020656452401 is an apocalyptic number.

It is an amenable number.

2020656452401 is a deficient number, since it is larger than the sum of its proper divisors (994287383).

2020656452401 is an equidigital number, since it uses as much as digits as its factorization.

2020656452401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90611.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 2020656452401 in words is "two trillion, twenty billion, six hundred fifty-six million, four hundred fifty-two thousand, four hundred one".

Divisors: 1 2657 9721 78233 25828697 207865081 760502993 2020656452401