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85629200 = 2452192593
BaseRepresentation
bin1010001101010…
…01100100010000
312222010102011212
411012221210100
5133410113300
612255155252
72056556546
oct506514420
9188112155
1085629200
1144376538
1224815b28
1314981687
14b52dd96
1577b6935
hex51a9910

85629200 has 90 divisors (see below), whose sum is σ = 217487754. Its totient is φ = 32394240.

The previous prime is 85629169. The next prime is 85629209. The reversal of 85629200 is 292658.

It can be written as a sum of positive squares in 3 ways, for example, as 7907344 + 77721856 = 2812^2 + 8816^2 .

It is not an unprimeable number, because it can be changed into a prime (85629209) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 144104 + ... + 144696.

Almost surely, 285629200 is an apocalyptic number.

85629200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85629200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108743877).

85629200 is an abundant number, since it is smaller than the sum of its proper divisors (131858554).

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

85629200 is a wasteful number, since it uses less digits than its factorization.

85629200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 85629200 is about 9253.6047030333. The cubic root of 85629200 is about 440.7651974108.

The spelling of 85629200 in words is "eighty-five million, six hundred twenty-nine thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 19 20 25 38 40 50 76 80 95 100 152 190 200 304 361 380 400 475 593 722 760 950 1186 1444 1520 1805 1900 2372 2888 2965 3610 3800 4744 5776 5930 7220 7600 9025 9488 11267 11860 14440 14825 18050 22534 23720 28880 29650 36100 45068 47440 56335 59300 72200 90136 112670 118600 144400 180272 214073 225340 237200 281675 428146 450680 563350 856292 901360 1070365 1126700 1712584 2140730 2253400 3425168 4281460 4506800 5351825 8562920 10703650 17125840 21407300 42814600 85629200