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85303630 = 25312331181
BaseRepresentation
bin1010001010110…
…10000101001110
312221111212120201
411011122011032
5133314204010
612244204114
72054032426
oct505320516
9187455521
1085303630
1144173975
122469963a
1314899429
14b487486
15775023a
hex515a14e

85303630 has 32 divisors (see below), whose sum is σ = 159314688. Its totient is φ = 32851200.

The previous prime is 85303613. The next prime is 85303633. The reversal of 85303630 is 3630358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85303633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71640 + ... + 72820.

It is an arithmetic number, because the mean of its divisors is an integer number (4978584).

Almost surely, 285303630 is an apocalyptic number.

85303630 is a deficient number, since it is larger than the sum of its proper divisors (74011058).

85303630 is a wasteful number, since it uses less digits than its factorization.

85303630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 85303630 is about 9235.9964270240. The cubic root of 85303630 is about 440.2058781715.

Adding to 85303630 its reverse (3630358), we get a palindrome (88933988).

The spelling of 85303630 in words is "eighty-five million, three hundred three thousand, six hundred thirty".

Divisors: 1 2 5 10 31 62 155 233 310 466 1165 1181 2330 2362 5905 7223 11810 14446 36115 36611 72230 73222 183055 275173 366110 550346 1375865 2751730 8530363 17060726 42651815 85303630