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85620192 = 25371031237
BaseRepresentation
bin1010001101001…
…11010111100000
312222002221211020
411012213113200
5133404321232
612255045440
72056521360
oct506472740
9188087736
1085620192
114436a799
1224810880
131497a548
14b52a9a0
1577b3e2c
hex51a75e0

85620192 has 96 divisors (see below), whose sum is σ = 259564032. Its totient is φ = 24205824.

The previous prime is 85620187. The next prime is 85620193. The reversal of 85620192 is 29102658.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85620193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68598 + ... + 69834.

It is an arithmetic number, because the mean of its divisors is an integer number (2703792).

Almost surely, 285620192 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 85620192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129782016).

85620192 is an abundant number, since it is smaller than the sum of its proper divisors (173943840).

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

85620192 is a wasteful number, since it uses less digits than its factorization.

85620192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 85620192 is about 9253.1179609902. The cubic root of 85620192 is about 440.7497410317.

The spelling of 85620192 in words is "eighty-five million, six hundred twenty thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 103 112 168 206 224 309 336 412 618 672 721 824 1236 1237 1442 1648 2163 2472 2474 2884 3296 3711 4326 4944 4948 5768 7422 8652 8659 9888 9896 11536 14844 17304 17318 19792 23072 25977 29688 34608 34636 39584 51954 59376 69216 69272 103908 118752 127411 138544 207816 254822 277088 382233 415632 509644 764466 831264 891877 1019288 1528932 1783754 2038576 2675631 3057864 3567508 4077152 5351262 6115728 7135016 10702524 12231456 14270032 21405048 28540064 42810096 85620192