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83524129 = 136424933
BaseRepresentation
bin1001111101001…
…11101000100001
312211011110120021
410332213220201
5132340233004
612142113441
72032641403
oct476475041
9184143507
1083524129
1143168a07
1223b7b881
13143c5480
14b142b73
1574ecd54
hex4fa7a21

83524129 has 4 divisors (see below), whose sum is σ = 89949076. Its totient is φ = 77099184.

The previous prime is 83524121. The next prime is 83524141. The reversal of 83524129 is 92142538.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92142538 = 246071269.

It can be written as a sum of positive squares in 2 ways, for example, as 51624225 + 31899904 = 7185^2 + 5648^2 .

It is a cyclic number.

It is not a de Polignac number, because 83524129 - 23 = 83524121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83524094 and 83524103.

It is not an unprimeable number, because it can be changed into a prime (83524121) 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, 3212454 + ... + 3212479.

It is an arithmetic number, because the mean of its divisors is an integer number (22487269).

Almost surely, 283524129 is an apocalyptic number.

It is an amenable number.

83524129 is a deficient number, since it is larger than the sum of its proper divisors (6424947).

83524129 is a wasteful number, since it uses less digits than its factorization.

83524129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6424946.

The product of its digits is 17280, while the sum is 34.

The square root of 83524129 is about 9139.1536260203. The cubic root of 83524129 is about 437.1233290181.

It can be divided in two parts, 835 and 24129, that added together give a square (24964 = 1582).

The spelling of 83524129 in words is "eighty-three million, five hundred twenty-four thousand, one hundred twenty-nine".

Divisors: 1 13 6424933 83524129