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89649321418 = 256897879181
BaseRepresentation
bin101001101111110000…
…1000001010111001010
322120101211000101112201
41103133201001113022
52432100211241133
6105103452030414
76322410442006
oct1233741012712
9276354011481
1089649321418
1135024783088
121545b46240a
1385b928c267
1444a64d5706
1524ea6abd7d
hex14df8415ca

89649321418 has 8 divisors (see below), whose sum is σ = 134497636740. Its totient is φ = 44816775840.

The previous prime is 89649321413. The next prime is 89649321469. The reversal of 89649321418 is 81412394698.

It can be written as a sum of positive squares in 2 ways, for example, as 89552358009 + 96963409 = 299253^2 + 9847^2 .

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

It is not an unprimeable number, because it can be changed into a prime (89649321413) 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, 3928213 + ... + 3950968.

Almost surely, 289649321418 is an apocalyptic number.

89649321418 is a deficient number, since it is larger than the sum of its proper divisors (44848315322).

89649321418 is a wasteful number, since it uses less digits than its factorization.

89649321418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7884872.

The product of its digits is 2985984, while the sum is 55.

The spelling of 89649321418 in words is "eighty-nine billion, six hundred forty-nine million, three hundred twenty-one thousand, four hundred eighteen".

Divisors: 1 2 5689 11378 7879181 15758362 44824660709 89649321418