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85349712 = 2437389653
BaseRepresentation
bin1010001011001…
…01010101010000
312221121012210110
411011211111100
5133322142322
612245201320
72054313660
oct505452520
9187535713
1085349712
11441a5558
1224700240
13148b43b6
14b49a1a0
15775dc0c
hex5165550

85349712 has 80 divisors (see below), whose sum is σ = 253019520. Its totient is φ = 24285696.

The previous prime is 85349701. The next prime is 85349717. The reversal of 85349712 is 21794358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85349717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130378 + ... + 131030.

It is an arithmetic number, because the mean of its divisors is an integer number (3162744).

Almost surely, 285349712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85349712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126509760).

85349712 is an abundant number, since it is smaller than the sum of its proper divisors (167669808).

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

85349712 is a wasteful number, since it uses less digits than its factorization.

85349712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 1054 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 85349712 is about 9238.4907858373. The cubic root of 85349712 is about 440.2851319912.

The spelling of 85349712 in words is "eighty-five million, three hundred forty-nine thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 389 653 778 1167 1306 1556 1959 2334 2612 2723 3112 3918 4571 4668 5224 5446 6224 7836 8169 9142 9336 10448 10892 13713 15672 16338 18284 18672 21784 27426 31344 32676 36568 43568 54852 65352 73136 109704 130704 219408 254017 508034 762051 1016068 1524102 1778119 2032136 3048204 3556238 4064272 5334357 6096408 7112476 10668714 12192816 14224952 21337428 28449904 42674856 85349712