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83089919 = 1131324133
BaseRepresentation
bin1001111001111…
…01100111111111
312210100101221102
410330331213333
5132232334134
612124523315
72026152443
oct474754777
9183311842
1083089919
11429a1760
12239b053b
13142a2943
14b06c823
15746437e
hex4f3d9ff

83089919 has 8 divisors (see below), whose sum is σ = 90936912. Its totient is φ = 75291840.

The previous prime is 83089913. The next prime is 83089939. The reversal of 83089919 is 91998038.

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

It is a cyclic number.

It is not a de Polignac number, because 83089919 - 28 = 83089663 is a prime.

It is a super-2 number, since 2×830899192 = 13807869278853122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83089913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8624 + ... + 15509.

It is an arithmetic number, because the mean of its divisors is an integer number (11367114).

Almost surely, 283089919 is an apocalyptic number.

83089919 is a deficient number, since it is larger than the sum of its proper divisors (7846993).

83089919 is a wasteful number, since it uses less digits than its factorization.

83089919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24457.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 83089919 is about 9115.3671895322. The cubic root of 83089919 is about 436.3645336011.

The spelling of 83089919 in words is "eighty-three million, eighty-nine thousand, nine hundred nineteen".

Divisors: 1 11 313 3443 24133 265463 7553629 83089919