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83220568 = 2397107243
BaseRepresentation
bin1001111010111…
…01100001011000
312210121001011021
410331131201120
5132301024233
612131412224
72030235364
oct475354130
9183531137
1083220568
1142a80932
1223a54074
131431a252
14b0a42a4
15748ce2d
hex4f5d858

83220568 has 16 divisors (see below), whose sum is σ = 157648680. Its totient is φ = 41180928.

The previous prime is 83220541. The next prime is 83220569. The reversal of 83220568 is 86502238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83220569) 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, 52846 + ... + 54397.

Almost surely, 283220568 is an apocalyptic number.

It is an amenable number.

83220568 is a deficient number, since it is larger than the sum of its proper divisors (74428112).

83220568 is a wasteful number, since it uses less digits than its factorization.

83220568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107346 (or 107342 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 83220568 is about 9122.5307892054. The cubic root of 83220568 is about 436.5931242489.

The spelling of 83220568 in words is "eighty-three million, two hundred twenty thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 97 194 388 776 107243 214486 428972 857944 10402571 20805142 41610284 83220568