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45031241 = 89505969
BaseRepresentation
bin1010101111000…
…1111101001001
310010201211020202
42223301331021
543011444431
64245101545
71054521263
oct253617511
9103654222
1045031241
1123467702
12130b78b5
139438908
145da2b33
153e478cb
hex2af1f49

45031241 has 4 divisors (see below), whose sum is σ = 45537300. Its totient is φ = 44525184.

The previous prime is 45031223. The next prime is 45031307. The reversal of 45031241 is 14213054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4020025 + 41011216 = 2005^2 + 6404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-45031241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45031201) 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, 252896 + ... + 253073.

It is an arithmetic number, because the mean of its divisors is an integer number (11384325).

Almost surely, 245031241 is an apocalyptic number.

It is an amenable number.

45031241 is a deficient number, since it is larger than the sum of its proper divisors (506059).

45031241 is an equidigital number, since it uses as much as digits as its factorization.

45031241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506058.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 45031241 is about 6710.5320951472. The cubic root of 45031241 is about 355.7716231887.

Adding to 45031241 its reverse (14213054), we get a palindrome (59244295).

The spelling of 45031241 in words is "forty-five million, thirty-one thousand, two hundred forty-one".

Divisors: 1 89 505969 45031241