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690227022755 = 5138045404551
BaseRepresentation
bin10100000101101001011…
…11001000101110100011
32102222121002220201021202
422002310233020232203
542302041104212010
61245030320311415
7100603316614334
oct12026457105643
92388532821252
10690227022755
112467a61841a6
12b192b77256b
135011b80887a
142559b39a28b
1512e4b0e06a5
hexa0b4bc8ba3

690227022755 has 4 divisors (see below), whose sum is σ = 828272427312. Its totient is φ = 552181618200.

The previous prime is 690227022743. The next prime is 690227022833. The reversal of 690227022755 is 557220722096.

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

It is not a de Polignac number, because 690227022755 - 24 = 690227022739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 69022702271 + ... + 69022702280.

It is an arithmetic number, because the mean of its divisors is an integer number (207068106828).

Almost surely, 2690227022755 is an apocalyptic number.

690227022755 is a deficient number, since it is larger than the sum of its proper divisors (138045404557).

690227022755 is a wasteful number, since it uses less digits than its factorization.

690227022755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138045404556.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 690227022755 in words is "six hundred ninety billion, two hundred twenty-seven million, twenty-two thousand, seven hundred fifty-five".

Divisors: 1 5 138045404551 690227022755