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453115240 = 23525145131
BaseRepresentation
bin11011000000011…
…111110101101000
31011120121122020221
4123000133311220
51411444141430
6112543455424
714141262454
oct3300376550
91146548227
10453115240
11212854206
121078b7574
1372b4a936
144426d664
1529ba657a
hex1b01fd68

453115240 has 32 divisors (see below), whose sum is σ = 1023593760. Its totient is φ = 180520000.

The previous prime is 453115217. The next prime is 453115253. The reversal of 453115240 is 42511354.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12526 + ... + 32605.

It is an arithmetic number, because the mean of its divisors is an integer number (31987305).

Almost surely, 2453115240 is an apocalyptic number.

453115240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

453115240 is an abundant number, since it is smaller than the sum of its proper divisors (570478520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

453115240 is a wasteful number, since it uses less digits than its factorization.

453115240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45393 (or 45389 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 453115240 is about 21286.5037053998. The cubic root of 453115240 is about 768.0736917497.

Adding to 453115240 its reverse (42511354), we get a palindrome (495626594).

The spelling of 453115240 in words is "four hundred fifty-three million, one hundred fifteen thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 251 502 1004 1255 2008 2510 5020 10040 45131 90262 180524 225655 361048 451310 902620 1805240 11327881 22655762 45311524 56639405 90623048 113278810 226557620 453115240