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83528061 = 3181199773
BaseRepresentation
bin1001111101010…
…00100101111101
312211011122221220
410332220211331
5132340344221
612142143553
72032656021
oct476504575
9184148856
1083528061
1143170961
1223b81bb9
13143c71b6
14b144381
1574ee0c6
hex4fa897d

83528061 has 16 divisors (see below), whose sum is σ = 112694400. Its totient is φ = 55028160.

The previous prime is 83528057. The next prime is 83528063. The reversal of 83528061 is 16082538.

It is a happy number.

It is not a de Polignac number, because 83528061 - 22 = 83528057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83528063) 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, 107671 + ... + 108443.

It is an arithmetic number, because the mean of its divisors is an integer number (7043400).

Almost surely, 283528061 is an apocalyptic number.

It is an amenable number.

83528061 is a deficient number, since it is larger than the sum of its proper divisors (29166339).

83528061 is a wasteful number, since it uses less digits than its factorization.

83528061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 83528061 is about 9139.3687418771. The cubic root of 83528061 is about 437.1301882813.

The spelling of 83528061 in words is "eighty-three million, five hundred twenty-eight thousand, sixty-one".

Divisors: 1 3 181 199 543 597 773 2319 36019 108057 139913 153827 419739 461481 27842687 83528061