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45004080881 = 78233575257
BaseRepresentation
bin101001111010011100…
…111100011011110001
311022011102010011222102
4221322130330123301
51214132021042011
632401413350145
73152146242614
oct517234743361
9138142104872
1045004080881
11180a46a3081
12887b938355
134322a0c776
14226d01217b
151285e9773b
hexa7a73c6f1

45004080881 has 4 divisors (see below), whose sum is σ = 45004734372. Its totient is φ = 45003427392.

The previous prime is 45004080809. The next prime is 45004080883. The reversal of 45004080881 is 18808040054.

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 21269597281 + 23734483600 = 145841^2 + 154060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-45004080881 is a prime.

It is a super-2 number, since 2×450040808812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45004080883) 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, 209396 + ... + 365861.

It is an arithmetic number, because the mean of its divisors is an integer number (11251183593).

Almost surely, 245004080881 is an apocalyptic number.

It is an amenable number.

45004080881 is a deficient number, since it is larger than the sum of its proper divisors (653491).

45004080881 is an equidigital number, since it uses as much as digits as its factorization.

45004080881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653490.

The product of its (nonzero) digits is 40960, while the sum is 38.

The spelling of 45004080881 in words is "forty-five billion, four million, eighty thousand, eight hundred eighty-one".

Divisors: 1 78233 575257 45004080881