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45142343 = 217920717
BaseRepresentation
bin1010110000110…
…1000101000111
310010221110122122
42230031011013
543024023333
64251320155
71055463221
oct254150507
9103843578
1045142343
1123533124
121315005b
13947735c
145dd1411
153e6a798
hex2b0d147

45142343 has 4 divisors (see below), whose sum is σ = 45165240. Its totient is φ = 45119448.

The previous prime is 45142333. The next prime is 45142351. The reversal of 45142343 is 34324154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34324154 = 217162077.

It is a cyclic number.

It is not a de Polignac number, because 45142343 - 28 = 45142087 is a prime.

It is a super-2 number, since 2×451423432 = 4075662263059298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45142333) 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, 8180 + ... + 12537.

It is an arithmetic number, because the mean of its divisors is an integer number (11291310).

Almost surely, 245142343 is an apocalyptic number.

45142343 is a deficient number, since it is larger than the sum of its proper divisors (22897).

45142343 is a wasteful number, since it uses less digits than its factorization.

45142343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22896.

The product of its digits is 5760, while the sum is 26.

The square root of 45142343 is about 6718.8051765176. The cubic root of 45142343 is about 356.0639719024.

Adding to 45142343 its reverse (34324154), we get a palindrome (79466497).

The spelling of 45142343 in words is "forty-five million, one hundred forty-two thousand, three hundred forty-three".

Divisors: 1 2179 20717 45142343