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89683951 = 712811993
BaseRepresentation
bin1010101100001…
…11011111101111
320020202102020211
411112013133233
5140424341301
612522123251
72136205150
oct526073757
9206672224
1089683951
1146695975
1226050527
1315771136
14bca7927
157d18051
hex55877ef

89683951 has 4 divisors (see below), whose sum is σ = 102495952. Its totient is φ = 76871952.

The previous prime is 89683901. The next prime is 89683963. The reversal of 89683951 is 15938698.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15938698 = 27969349.

It is a cyclic number.

It is not a de Polignac number, because 89683951 - 213 = 89675759 is a prime.

It is a super-2 number, since 2×896839512 = 16086422133940802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89683895 and 89683904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89683901) 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, 6405990 + ... + 6406003.

It is an arithmetic number, because the mean of its divisors is an integer number (25623988).

Almost surely, 289683951 is an apocalyptic number.

89683951 is a deficient number, since it is larger than the sum of its proper divisors (12812001).

89683951 is a wasteful number, since it uses less digits than its factorization.

89683951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12812000.

The product of its digits is 466560, while the sum is 49.

The square root of 89683951 is about 9470.1610862751. The cubic root of 89683951 is about 447.6152877541.

The spelling of 89683951 in words is "eighty-nine million, six hundred eighty-three thousand, nine hundred fifty-one".

Divisors: 1 7 12811993 89683951