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83690030 = 258369003
BaseRepresentation
bin1001111110100…
…00001000101110
312211110220010202
410333100020232
5132411040110
612145433502
72034232154
oct477201056
9184426122
1083690030
1143271616
122403b892
1314452b38
14b1873d4
1575320a5
hex4fd022e

83690030 has 8 divisors (see below), whose sum is σ = 150642072. Its totient is φ = 33476008.

The previous prime is 83690023. The next prime is 83690051. The reversal of 83690030 is 3009638.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×836900302 = 14008042242801800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83689975 and 83690002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4184492 + ... + 4184511.

It is an arithmetic number, because the mean of its divisors is an integer number (18830259).

Almost surely, 283690030 is an apocalyptic number.

83690030 is a deficient number, since it is larger than the sum of its proper divisors (66952042).

83690030 is a wasteful number, since it uses less digits than its factorization.

83690030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8369010.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 83690030 is about 9148.2255109939. The cubic root of 83690030 is about 437.4125517736.

Adding to 83690030 its reverse (3009638), we get a palindrome (86699668).

The spelling of 83690030 in words is "eighty-three million, six hundred ninety thousand, thirty".

Divisors: 1 2 5 10 8369003 16738006 41845015 83690030