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45198289 = 232431987
BaseRepresentation
bin1010110001101…
…0101111010001
310011001022101201
42230122233101
543032321124
64252431201
71056115303
oct254325721
9104038351
1045198289
1123571164
1213178501
139496966
146007973
153e7c144
hex2b1abd1

45198289 has 12 divisors (see below), whose sum is σ = 48372016. Its totient is φ = 42206472.

The previous prime is 45198287. The next prime is 45198311. The reversal of 45198289 is 98289154.

It is not a de Polignac number, because 45198289 - 21 = 45198287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45198281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21754 + ... + 23740.

Almost surely, 245198289 is an apocalyptic number.

It is an amenable number.

45198289 is a deficient number, since it is larger than the sum of its proper divisors (3173727).

45198289 is a wasteful number, since it uses less digits than its factorization.

45198289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076 (or 2053 counting only the distinct ones).

The product of its digits is 207360, while the sum is 46.

The square root of 45198289 is about 6722.9672764338. The cubic root of 45198289 is about 356.2110040829.

The spelling of 45198289 in words is "forty-five million, one hundred ninety-eight thousand, two hundred eighty-nine".

Divisors: 1 23 43 529 989 1987 22747 45701 85441 1051123 1965143 45198289