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18885769094 = 211178453791
BaseRepresentation
bin10001100101101011…
…011111011110000110
31210202011220110210102
4101211223133132012
5302134224102334
612402003324102
71236002250203
oct214553373606
953664813712
1018885769094
118011584935
1237b0980632
131a1c8b36ca
14cb2320caa
1575802367e
hex465adf786

18885769094 has 8 divisors (see below), whose sum is σ = 28354018368. Its totient is φ = 9434429640.

The previous prime is 18885769087. The next prime is 18885769103. The reversal of 18885769094 is 49096758881.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18885769094.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4224662 + ... + 4229129.

It is an arithmetic number, because the mean of its divisors is an integer number (3544252296).

Almost surely, 218885769094 is an apocalyptic number.

18885769094 is a deficient number, since it is larger than the sum of its proper divisors (9468249274).

18885769094 is a wasteful number, since it uses less digits than its factorization.

18885769094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8454910.

The product of its (nonzero) digits is 34836480, while the sum is 65.

The spelling of 18885769094 in words is "eighteen billion, eight hundred eighty-five million, seven hundred sixty-nine thousand, ninety-four".

Divisors: 1 2 1117 2234 8453791 16907582 9442884547 18885769094