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233040625 = 5574573
BaseRepresentation
bin11011110001111…
…10101011110001
3121020111200122021
431320332223301
5434124300000
635042511441
75526545506
oct1570765361
9536450567
10233040625
1110a5aa964
1266065581
133938527c
1422d434ad
15156d411a
hexde3eaf1

233040625 has 12 divisors (see below), whose sum is σ = 291286044. Its totient is φ = 186430000.

The previous prime is 233040581. The next prime is 233040649. The reversal of 233040625 is 526040332.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 171950769 + 61089856 = 13113^2 + 7816^2 .

It is not a de Polignac number, because 233040625 - 27 = 233040497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 233040625.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34162 + ... + 40411.

It is an arithmetic number, because the mean of its divisors is an integer number (24273837).

Almost surely, 2233040625 is an apocalyptic number.

233040625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

233040625 is a deficient number, since it is larger than the sum of its proper divisors (58245419).

233040625 is an frugal number, since it uses more digits than its factorization.

233040625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74598 (or 74578 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 233040625 is about 15265.6681805940. The cubic root of 233040625 is about 615.3807103618.

Adding to 233040625 its reverse (526040332), we get a palindrome (759080957).

The spelling of 233040625 in words is "two hundred thirty-three million, forty thousand, six hundred twenty-five".

Divisors: 1 5 25 125 625 3125 74573 372865 1864325 9321625 46608125 233040625