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2525054440 = 235277227893
BaseRepresentation
bin1001011010000001…
…0100010111101000
320111222100001111211
42112200110113220
520132403220230
61054320402504
7116400415516
oct22640242750
96458301454
102525054440
111086366857
125a5776434
1331319236c
1419d4d34b6
15eba2942a
hex968145e8

2525054440 has 32 divisors (see below), whose sum is σ = 5701907880. Its totient is φ = 1006371072.

The previous prime is 2525054429. The next prime is 2525054443. The reversal of 2525054440 is 444505252.

It can be written as a sum of positive squares in 4 ways, for example, as 1851236676 + 673817764 = 43026^2 + 25958^2 .

It is not an unprimeable number, because it can be changed into a prime (2525054443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102867 + ... + 125026.

Almost surely, 22525054440 is an apocalyptic number.

2525054440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2525054440 is an abundant number, since it is smaller than the sum of its proper divisors (3176853440).

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

2525054440 is a wasteful number, since it uses less digits than its factorization.

2525054440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228181 (or 228177 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 2525054440 is about 50249.9198009310. The cubic root of 2525054440 is about 1361.7276271061.

Adding to 2525054440 its reverse (444505252), we get a palindrome (2969559692).

The spelling of 2525054440 in words is "two billion, five hundred twenty-five million, fifty-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 277 554 1108 1385 2216 2770 5540 11080 227893 455786 911572 1139465 1823144 2278930 4557860 9115720 63126361 126252722 252505444 315631805 505010888 631263610 1262527220 2525054440