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82695047 = 199415553
BaseRepresentation
bin1001110110111…
…01001110000111
312202121100021112
410323131032013
5132132220142
612112235235
72022616301
oct473351607
9182540245
1082695047
1142752016
122383bb1b
1314194ca6
14ada8971
1573d7382
hex4edd387

82695047 has 4 divisors (see below), whose sum is σ = 83110800. Its totient is φ = 82279296.

The previous prime is 82695023. The next prime is 82695059. The reversal of 82695047 is 74059628.

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

It is a cyclic number.

It is not a de Polignac number, because 82695047 - 28 = 82694791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82694995 and 82695013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82695017) 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, 207578 + ... + 207975.

It is an arithmetic number, because the mean of its divisors is an integer number (20777700).

Almost surely, 282695047 is an apocalyptic number.

82695047 is a deficient number, since it is larger than the sum of its proper divisors (415753).

82695047 is a wasteful number, since it uses less digits than its factorization.

82695047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415752.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 82695047 is about 9093.6817076473. The cubic root of 82695047 is about 435.6721840074.

The spelling of 82695047 in words is "eighty-two million, six hundred ninety-five thousand, forty-seven".

Divisors: 1 199 415553 82695047