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83894541 = 3171644991
BaseRepresentation
bin1010000000000…
…10000100001101
312211212021200020
411000002010031
5132434111131
612154052353
72036043333
oct500020415
9184767606
1083894541
11433a1235
122411a0b9
13144c4c53
14b1dbb53
157572996
hex500210d

83894541 has 8 divisors (see below), whose sum is σ = 118439424. Its totient is φ = 52639680.

The previous prime is 83894521. The next prime is 83894561. The reversal of 83894541 is 14549838.

It is an interprime number because it is at equal distance from previous prime (83894521) and next prime (83894561).

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

It is not a de Polignac number, because 83894541 - 25 = 83894509 is a prime.

It is a super-3 number, since 3×838945413 (a number of 25 digits) contains 333 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 83894493 and 83894502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83894521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822445 + ... + 822546.

It is an arithmetic number, because the mean of its divisors is an integer number (14804928).

Almost surely, 283894541 is an apocalyptic number.

It is an amenable number.

83894541 is a deficient number, since it is larger than the sum of its proper divisors (34544883).

83894541 is a wasteful number, since it uses less digits than its factorization.

83894541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645011.

The product of its digits is 138240, while the sum is 42.

The square root of 83894541 is about 9159.3963229025. The cubic root of 83894541 is about 437.7685595734.

The spelling of 83894541 in words is "eighty-three million, eight hundred ninety-four thousand, five hundred forty-one".

Divisors: 1 3 17 51 1644991 4934973 27964847 83894541