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89372913 = 3721813359
BaseRepresentation
bin1010101001110…
…11100011110001
320020011121120220
411110323203301
5140334413123
612511323253
72133441300
oct524734361
9206147526
1089372913
11464a3213
1225b20529
13156926a6
14bc26437
157ca5ce3
hex553b8f1

89372913 has 24 divisors (see below), whose sum is σ = 139426560. Its totient is φ = 50772960.

The previous prime is 89372891. The next prime is 89372929. The reversal of 89372913 is 31927398.

It is not a de Polignac number, because 89372913 - 26 = 89372849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89372953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24928 + ... + 28286.

It is an arithmetic number, because the mean of its divisors is an integer number (5809440).

Almost surely, 289372913 is an apocalyptic number.

It is an amenable number.

89372913 is a deficient number, since it is larger than the sum of its proper divisors (50053647).

89372913 is a wasteful number, since it uses less digits than its factorization.

89372913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557 (or 3550 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 89372913 is about 9453.7248214659. The cubic root of 89372913 is about 447.0972217199.

The spelling of 89372913 in words is "eighty-nine million, three hundred seventy-two thousand, nine hundred thirteen".

Divisors: 1 3 7 21 49 147 181 543 1267 3359 3801 8869 10077 23513 26607 70539 164591 493773 607979 1823937 4255853 12767559 29790971 89372913