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85344844 = 221316310069
BaseRepresentation
bin1010001011001…
…00001001001100
312221120222010011
411011210021030
5133322013334
612245123004
72054263534
oct505441114
9187528104
1085344844
11441a1932
12246b9464
13148b2110
14b4984c4
15775c564
hex516424c

85344844 has 24 divisors (see below), whose sum is σ = 161845040. Its totient is φ = 39144384.

The previous prime is 85344841. The next prime is 85344851. The reversal of 85344844 is 44844358.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 85344797 and 85344806.

It is not an unprimeable number, because it can be changed into a prime (85344841) 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, 3442 + ... + 13510.

Almost surely, 285344844 is an apocalyptic number.

It is an amenable number.

85344844 is a deficient number, since it is larger than the sum of its proper divisors (76500196).

85344844 is a wasteful number, since it uses less digits than its factorization.

85344844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10249 (or 10247 counting only the distinct ones).

The product of its digits is 245760, while the sum is 40.

The square root of 85344844 is about 9238.2273191343. The cubic root of 85344844 is about 440.2767611417.

The spelling of 85344844 in words is "eighty-five million, three hundred forty-four thousand, eight hundred forty-four".

Divisors: 1 2 4 13 26 52 163 326 652 2119 4238 8476 10069 20138 40276 130897 261794 523588 1641247 3282494 6564988 21336211 42672422 85344844