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83630452 = 2289234917
BaseRepresentation
bin1001111110000…
…01100101110100
312211100212102011
410333001211310
5132402133302
612144254004
72033563363
oct477014564
9184325364
1083630452
1143230884
1224011304
1314431999
14b16d7da
15751e5d7
hex4fc1974

83630452 has 12 divisors (see below), whose sum is σ = 147998340. Its totient is φ = 41345216.

The previous prime is 83630441. The next prime is 83630453. The reversal of 83630452 is 25403638.

It can be written as a sum of positive squares in 2 ways, for example, as 47941776 + 35688676 = 6924^2 + 5974^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83630453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117103 + ... + 117814.

It is an arithmetic number, because the mean of its divisors is an integer number (12333195).

Almost surely, 283630452 is an apocalyptic number.

It is an amenable number.

83630452 is a deficient number, since it is larger than the sum of its proper divisors (64367888).

83630452 is a wasteful number, since it uses less digits than its factorization.

83630452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235010 (or 235008 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 83630452 is about 9144.9686713515. The cubic root of 83630452 is about 437.3087307591.

The spelling of 83630452 in words is "eighty-three million, six hundred thirty thousand, four hundred fifty-two".

Divisors: 1 2 4 89 178 356 234917 469834 939668 20907613 41815226 83630452