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9052900781 = 10189632681
BaseRepresentation
bin10000110111001100…
…00100110110101101
3212100220122000020112
420123212010312231
5122020020311111
64054151025405
7440224246511
oct103346046655
925326560215
109052900781
113926143391
12190796b265
13b13712b32
1461c466141
1537eb7ae8b
hex21b984dad

9052900781 has 4 divisors (see below), whose sum is σ = 9142533564. Its totient is φ = 8963268000.

The previous prime is 9052900771. The next prime is 9052900783. The reversal of 9052900781 is 1870092509.

9052900781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8871756100 + 181144681 = 94190^2 + 13459^2 .

It is a cyclic number.

It is not a de Polignac number, because 9052900781 - 214 = 9052884397 is a prime.

It is a super-2 number, since 2×90529007812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9052900783) 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, 44816240 + ... + 44816441.

It is an arithmetic number, because the mean of its divisors is an integer number (2285633391).

Almost surely, 29052900781 is an apocalyptic number.

It is an amenable number.

9052900781 is a deficient number, since it is larger than the sum of its proper divisors (89632783).

9052900781 is a wasteful number, since it uses less digits than its factorization.

9052900781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89632782.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 9052900781 is about 95146.7328971416. The cubic root of 9052900781 is about 2084.1513476369.

The spelling of 9052900781 in words is "nine billion, fifty-two million, nine hundred thousand, seven hundred eighty-one".

Divisors: 1 101 89632681 9052900781