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85047663 = 331914491
BaseRepresentation
bin1010001000110…
…11100101101111
312221000212110110
411010123211233
5133233011123
612234511103
72051615241
oct504334557
9187025413
1085047663
1144009628
1224595493
1314809a7c
14b41c091
1576ee493
hex511b96f

85047663 has 8 divisors (see below), whose sum is σ = 117054976. Its totient is φ = 54869400.

The previous prime is 85047661. The next prime is 85047673. The reversal of 85047663 is 36674058.

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

It is not a de Polignac number, because 85047663 - 21 = 85047661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85047661) 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, 457153 + ... + 457338.

It is an arithmetic number, because the mean of its divisors is an integer number (14631872).

Almost surely, 285047663 is an apocalyptic number.

85047663 is a deficient number, since it is larger than the sum of its proper divisors (32007313).

85047663 is a wasteful number, since it uses less digits than its factorization.

85047663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914525.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 85047663 is about 9222.1289841338. The cubic root of 85047663 is about 439.7651346409.

The spelling of 85047663 in words is "eighty-five million, forty-seven thousand, six hundred sixty-three".

Divisors: 1 3 31 93 914491 2743473 28349221 85047663