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85917748 = 2273068491
BaseRepresentation
bin1010001111100…
…00000000110100
312222200001222211
411013300000310
5133443331443
612305303204
72062201030
oct507600064
9188601884
1085917748
1144553304
1224934b04
1314a52b07
14b5a71c0
15782219d
hex51f0034

85917748 has 12 divisors (see below), whose sum is σ = 171835552. Its totient is φ = 36821880.

The previous prime is 85917743. The next prime is 85917781. The reversal of 85917748 is 84771958.

85917748 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85917743) 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, 1534218 + ... + 1534273.

Almost surely, 285917748 is an apocalyptic number.

It is an amenable number.

85917748 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85917748 is a wasteful number, since it uses less digits than its factorization.

85917748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068502 (or 3068500 counting only the distinct ones).

The product of its digits is 564480, while the sum is 49.

The square root of 85917748 is about 9269.1827039928. The cubic root of 85917748 is about 441.2597301420.

The spelling of 85917748 in words is "eighty-five million, nine hundred seventeen thousand, seven hundred forty-eight".

Divisors: 1 2 4 7 14 28 3068491 6136982 12273964 21479437 42958874 85917748