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225477338891 = 732211048413
BaseRepresentation
bin1101000111111101111…
…1110010011100001011
3210112222220101121011112
43101333133302130023
512143234144321031
6251325521520535
722201352520650
oct3217737623413
9715886347145
10225477338891
1187696096a82
1237847aa314b
131835470502c
14acada01c27
155ce9ed562b
hex347f7f270b

225477338891 has 4 divisors (see below), whose sum is σ = 257688387312. Its totient is φ = 193266290472.

The previous prime is 225477338861. The next prime is 225477338917. The reversal of 225477338891 is 198833774522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-225477338891 is a prime.

It is a super-2 number, since 2×2254773388912 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225477338891.

It is not an unprimeable number, because it can be changed into a prime (225477338861) 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, 16105524200 + ... + 16105524213.

It is an arithmetic number, because the mean of its divisors is an integer number (64422096828).

Almost surely, 2225477338891 is an apocalyptic number.

225477338891 is a deficient number, since it is larger than the sum of its proper divisors (32211048421).

225477338891 is an equidigital number, since it uses as much as digits as its factorization.

225477338891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32211048420.

The product of its digits is 20321280, while the sum is 59.

The spelling of 225477338891 in words is "two hundred twenty-five billion, four hundred seventy-seven million, three hundred thirty-eight thousand, eight hundred ninety-one".

Divisors: 1 7 32211048413 225477338891