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85092861 = 3723171263
BaseRepresentation
bin1010001001001…
…10100111111101
312221010011110110
411010212213331
5133240432421
612235500233
72052164100
oct504464775
9187104413
1085092861
114403a587
12245b7679
1314824509
14b430737
15770ca76
hex51269fd

85092861 has 48 divisors (see below), whose sum is σ = 138682368. Its totient is φ = 46216800.

The previous prime is 85092853. The next prime is 85092869. The reversal of 85092861 is 16829058.

It is an interprime number because it is at equal distance from previous prime (85092853) and next prime (85092869).

It is not a de Polignac number, because 85092861 - 23 = 85092853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85092869) 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, 323416 + ... + 323678.

It is an arithmetic number, because the mean of its divisors is an integer number (2889216).

Almost surely, 285092861 is an apocalyptic number.

It is an amenable number.

85092861 is a deficient number, since it is larger than the sum of its proper divisors (53589507).

85092861 is a wasteful number, since it uses less digits than its factorization.

85092861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 85092861 is about 9224.5791773934. The cubic root of 85092861 is about 439.8430242377.

The spelling of 85092861 in words is "eighty-five million, ninety-two thousand, eight hundred sixty-one".

Divisors: 1 3 7 21 31 49 71 93 147 213 217 263 497 651 789 1491 1519 1841 2201 3479 4557 5523 6603 8153 10437 12887 15407 18673 24459 38661 46221 56019 57071 107849 130711 171213 323547 392133 399497 578863 914977 1198491 1736589 2744931 4052041 12156123 28364287 85092861