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85474417 = 723530897
BaseRepresentation
bin1010001100000…
…11110001110001
312221211112212011
411012003301301
5133340140132
612252002521
72055343360
oct506036161
9187745764
1085474417
1144280216
1224760441
13149290a2
14b4cd7d7
157785b47
hex5183c71

85474417 has 8 divisors (see below), whose sum is σ = 101932416. Its totient is φ = 70078272.

The previous prime is 85474393. The next prime is 85474423. The reversal of 85474417 is 71447458.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 85474417 - 27 = 85474289 is a prime.

It is a super-2 number, since 2×854744172 = 14611751922979778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85474417.

It is not an unprimeable number, because it can be changed into a prime (85474517) 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, 265288 + ... + 265609.

It is an arithmetic number, because the mean of its divisors is an integer number (12741552).

Almost surely, 285474417 is an apocalyptic number.

It is an amenable number.

85474417 is a deficient number, since it is larger than the sum of its proper divisors (16457999).

85474417 is a wasteful number, since it uses less digits than its factorization.

85474417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530927.

The product of its digits is 125440, while the sum is 40.

The square root of 85474417 is about 9245.2375307506. The cubic root of 85474417 is about 440.4994620955.

The spelling of 85474417 in words is "eighty-five million, four hundred seventy-four thousand, four hundred seventeen".

Divisors: 1 7 23 161 530897 3716279 12210631 85474417