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9042906085 = 541257171641
BaseRepresentation
bin10000110101111111…
…11100101111100101
3212100012211020002121
420122333330233211
5122004440443320
64053152505541
7440043301453
oct103277745745
925305736077
109042906085
113920537204
12190454b2b1
13b11623805
1461adc39d3
1537dd548aa
hex21affcbe5

9042906085 has 16 divisors (see below), whose sum is σ = 11159476272. Its totient is φ = 7030374400.

The previous prime is 9042906083. The next prime is 9042906109. The reversal of 9042906085 is 5806092409.

9042906085 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 135699201 + 8907206884 = 11649^2 + 94378^2 .

It is not a de Polignac number, because 9042906085 - 21 = 9042906083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9042906083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33136 + ... + 138505.

It is an arithmetic number, because the mean of its divisors is an integer number (697467267).

Almost surely, 29042906085 is an apocalyptic number.

It is an amenable number.

9042906085 is a deficient number, since it is larger than the sum of its proper divisors (2116570187).

9042906085 is a wasteful number, since it uses less digits than its factorization.

9042906085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171944.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 9042906085 is about 95094.1958533748. The cubic root of 9042906085 is about 2083.3840749810.

The spelling of 9042906085 in words is "nine billion, forty-two million, nine hundred six thousand, eighty-five".

Divisors: 1 5 41 205 257 1285 10537 52685 171641 858205 7037281 35186405 44111737 220558685 1808581217 9042906085