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85857148 = 22133115309
BaseRepresentation
bin1010001111000…
…01001101111100
312222112222212101
411013201031330
5133434412043
612304114444
72061526246
oct507411574
9188488771
1085857148
1144511823
1224905a24
1314a31360
14b58d096
15780e24d
hex51e137c

85857148 has 24 divisors (see below), whose sum is σ = 162358560. Its totient is φ = 39491520.

The previous prime is 85857133. The next prime is 85857151. The reversal of 85857148 is 84175858.

It is a junction number, because it is equal to n+sod(n) for n = 85857098 and 85857107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13518 + ... + 18826.

It is an arithmetic number, because the mean of its divisors is an integer number (6764940).

Almost surely, 285857148 is an apocalyptic number.

It is an amenable number.

85857148 is a deficient number, since it is larger than the sum of its proper divisors (76501412).

85857148 is a wasteful number, since it uses less digits than its factorization.

85857148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5637 (or 5635 counting only the distinct ones).

The product of its digits is 358400, while the sum is 46.

The square root of 85857148 is about 9265.9132307614. The cubic root of 85857148 is about 441.1559617914.

The spelling of 85857148 in words is "eighty-five million, eight hundred fifty-seven thousand, one hundred forty-eight".

Divisors: 1 2 4 13 26 52 311 622 1244 4043 5309 8086 10618 16172 21236 69017 138034 276068 1651099 3302198 6604396 21464287 42928574 85857148