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243413025 = 35223731933
BaseRepresentation
bin11101000001000…
…11000000100001
3121222000122220020
432200203000201
5444303204100
640053104053
76013655652
oct1640430041
9558018806
10243413025
11115444899
1269628029
133b57749b
1424483529
15165825a0
hexe823021

243413025 has 48 divisors (see below), whose sum is σ = 425913216. Its totient is φ = 122411520.

The previous prime is 243413017. The next prime is 243413029. The reversal of 243413025 is 520314342.

It is not a de Polignac number, because 243413025 - 23 = 243413017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243412986 and 243413004.

It is not an unprimeable number, because it can be changed into a prime (243413029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124959 + ... + 126891.

It is an arithmetic number, because the mean of its divisors is an integer number (8873192).

Almost surely, 2243413025 is an apocalyptic number.

243413025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243413025 is a deficient number, since it is larger than the sum of its proper divisors (182500191).

243413025 is a wasteful number, since it uses less digits than its factorization.

243413025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 243413025 is about 15601.6994266650. The cubic root of 243413025 is about 624.3784968456.

Adding to 243413025 its reverse (520314342), we get a palindrome (763727367).

The spelling of 243413025 in words is "two hundred forty-three million, four hundred thirteen thousand, twenty-five".

Divisors: 1 3 5 15 23 25 69 73 75 115 219 345 365 575 1095 1679 1725 1825 1933 5037 5475 5799 8395 9665 25185 28995 41975 44459 48325 125925 133377 141109 144975 222295 423327 666885 705545 1111475 2116635 3245507 3334425 3527725 9736521 10583175 16227535 48682605 81137675 243413025