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233133425 = 5272190313
BaseRepresentation
bin11011110010101…
…01010101110001
3121020200101221022
431321111111301
5434140232200
635044505225
75530413200
oct1571252561
9536611838
10233133425
1110a663658
12660ab215
13393b8595
1422d69237
1515701885
hexde55571

233133425 has 18 divisors (see below), whose sum is σ = 336284838. Its totient is φ = 159862080.

The previous prime is 233133391. The next prime is 233133431. The reversal of 233133425 is 524331332.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 906304 + 232227121 = 952^2 + 15239^2 .

It is not a de Polignac number, because 233133425 - 210 = 233132401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233133394 and 233133403.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 93932 + ... + 96381.

It is an arithmetic number, because the mean of its divisors is an integer number (18682491).

Almost surely, 2233133425 is an apocalyptic number.

233133425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

233133425 is a deficient number, since it is larger than the sum of its proper divisors (103151413).

233133425 is a wasteful number, since it uses less digits than its factorization.

233133425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190337 (or 190325 counting only the distinct ones).

The product of its digits is 6480, while the sum is 26.

The square root of 233133425 is about 15268.7073781640. The cubic root of 233133425 is about 615.4623838916.

Adding to 233133425 its reverse (524331332), we get a palindrome (757464757).

The spelling of 233133425 in words is "two hundred thirty-three million, one hundred thirty-three thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 49 175 245 1225 190313 951565 1332191 4757825 6660955 9325337 33304775 46626685 233133425