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18077317071 = 311547797487
BaseRepresentation
bin10000110101011111…
…011111011111001111
31201122211122212002220
4100311133133133033
5244010243121241
612145443350423
71206654442212
oct206537373717
951584585086
1018077317071
1177371a0970
123606082413
131921261728
14c36bd5779
1570c07c166
hex4357df7cf

18077317071 has 8 divisors (see below), whose sum is σ = 26294279424. Its totient is φ = 10955949720.

The previous prime is 18077317051. The next prime is 18077317073. The reversal of 18077317071 is 17071377081.

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

It is not a de Polignac number, because 18077317071 - 26 = 18077317007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18077317073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273898711 + ... + 273898776.

It is an arithmetic number, because the mean of its divisors is an integer number (3286784928).

Almost surely, 218077317071 is an apocalyptic number.

18077317071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18077317071 is a deficient number, since it is larger than the sum of its proper divisors (8216962353).

18077317071 is a wasteful number, since it uses less digits than its factorization.

18077317071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547797501.

The product of its (nonzero) digits is 57624, while the sum is 42.

The spelling of 18077317071 in words is "eighteen billion, seventy-seven million, three hundred seventeen thousand, seventy-one".

Divisors: 1 3 11 33 547797487 1643392461 6025772357 18077317071