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85897461 = 31321937241
BaseRepresentation
bin1010001111010…
…11000011110101
312222122001011110
411013223003311
5133442204321
612305025233
72062054626
oct507530365
9188561143
1085897461
114453a041
1224925219
1314a46800
14b59da4d
15781b176
hex51eb0f5

85897461 has 48 divisors (see below), whose sum is σ = 134629440. Its totient is φ = 48522240.

The previous prime is 85897459. The next prime is 85897517. The reversal of 85897461 is 16479858.

It is not a de Polignac number, because 85897461 - 21 = 85897459 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85897461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85897061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 356301 + ... + 356541.

It is an arithmetic number, because the mean of its divisors is an integer number (2804780).

Almost surely, 285897461 is an apocalyptic number.

It is an amenable number.

85897461 is a deficient number, since it is larger than the sum of its proper divisors (48731979).

85897461 is a wasteful number, since it uses less digits than its factorization.

85897461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 313 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 85897461 is about 9268.0883142102. The cubic root of 85897461 is about 441.2249971521.

The spelling of 85897461 in words is "eighty-five million, eight hundred ninety-seven thousand, four hundred sixty-one".

Divisors: 1 3 13 19 37 39 57 111 169 241 247 481 507 703 723 741 1443 2109 3133 3211 4579 6253 8917 9139 9399 9633 13737 18759 26751 27417 40729 59527 115921 118807 122187 169423 178581 347763 356421 508269 773851 1506973 2202499 2321553 4520919 6607497 28632487 85897461