Search a number
-
+
45050881 = 192371099
BaseRepresentation
bin1010101111011…
…0110000000001
310010202211012011
42223312300001
543013112011
64245332521
71054632451
oct253666001
9103684164
1045050881
1123480437
1213107141
139444835
145da9d61
153e4d621
hex2af6c01

45050881 has 4 divisors (see below), whose sum is σ = 47422000. Its totient is φ = 42679764.

The previous prime is 45050869. The next prime is 45050893. The reversal of 45050881 is 18805054.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18805054 = 29402527.

It is an interprime number because it is at equal distance from previous prime (45050869) and next prime (45050893).

It is a cyclic number.

It is not a de Polignac number, because 45050881 - 219 = 44526593 is a prime.

It is a super-2 number, since 2×450508812 = 4059163757752322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45050081) 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, 1185531 + ... + 1185568.

It is an arithmetic number, because the mean of its divisors is an integer number (11855500).

Almost surely, 245050881 is an apocalyptic number.

It is an amenable number.

45050881 is a deficient number, since it is larger than the sum of its proper divisors (2371119).

45050881 is a wasteful number, since it uses less digits than its factorization.

45050881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371118.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 45050881 is about 6711.9953069114. The cubic root of 45050881 is about 355.8233379460.

The spelling of 45050881 in words is "forty-five million, fifty thousand, eight hundred eighty-one".

Divisors: 1 19 2371099 45050881