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9090070265 = 51818014053
BaseRepresentation
bin10000111011100111…
…10111011011111001
3212110111120102012002
420131303313123321
5122104024222030
64101555430345
7441155215403
oct103563673371
925414512162
109090070265
113945120371
1219182b53b5
13b1b328203
1462337db73
1538306e245
hex21dcf76f9

9090070265 has 4 divisors (see below), whose sum is σ = 10908084324. Its totient is φ = 7272056208.

The previous prime is 9090070261. The next prime is 9090070279. The reversal of 9090070265 is 5620700909.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5620700909 = 55529101221.

It can be written as a sum of positive squares in 2 ways, for example, as 1939169296 + 7150900969 = 44036^2 + 84563^2 .

It is a cyclic number.

It is not a de Polignac number, because 9090070265 - 22 = 9090070261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9090070261) 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, 909007022 + ... + 909007031.

It is an arithmetic number, because the mean of its divisors is an integer number (2727021081).

Almost surely, 29090070265 is an apocalyptic number.

It is an amenable number.

9090070265 is a deficient number, since it is larger than the sum of its proper divisors (1818014059).

9090070265 is a wasteful number, since it uses less digits than its factorization.

9090070265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818014058.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 9090070265 is about 95341.8599829057. The cubic root of 9090070265 is about 2086.9998287250. Note that the first 3 decimals are identical.

The spelling of 9090070265 in words is "nine billion, ninety million, seventy thousand, two hundred sixty-five".

Divisors: 1 5 1818014053 9090070265