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45052881 = 315017627
BaseRepresentation
bin1010101111011…
…1001111010001
310010202220221020
42223313033101
543013143011
64245350053
71054641336
oct253671721
9103686836
1045052881
1123481995
1213108329
139445713
145daa98d
153e4e006
hex2af73d1

45052881 has 4 divisors (see below), whose sum is σ = 60070512. Its totient is φ = 30035252.

The previous prime is 45052879. The next prime is 45052897. The reversal of 45052881 is 18825054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45052881 - 21 = 45052879 is a prime.

It is a super-2 number, since 2×450528812 = 4059524172800322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45052811) 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, 7508811 + ... + 7508816.

It is an arithmetic number, because the mean of its divisors is an integer number (15017628).

Almost surely, 245052881 is an apocalyptic number.

It is an amenable number.

45052881 is a deficient number, since it is larger than the sum of its proper divisors (15017631).

45052881 is a wasteful number, since it uses less digits than its factorization.

45052881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15017630.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 45052881 is about 6712.1442922512. The cubic root of 45052881 is about 355.8286033713.

The spelling of 45052881 in words is "forty-five million, fifty-two thousand, eight hundred eighty-one".

Divisors: 1 3 15017627 45052881