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243015253025 = 5219521981979
BaseRepresentation
bin1110001001010011010…
…1100111110000100001
3212020021011001221112212
43202110311213300201
512440143401044100
6303350100131505
723362100365646
oct3422465476041
9766234057485
10243015253025
1194075858496
123b121396b95
1319bbac9680c
14ba94d05dcd
1564c4a14635
hex3894d67c21

243015253025 has 24 divisors (see below), whose sum is σ = 317808007200. Its totient is φ = 183826281600.

The previous prime is 243015253003. The next prime is 243015253073. The reversal of 243015253025 is 520352510342.

It is not a de Polignac number, because 243015253025 - 212 = 243015248929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243015252982 and 243015253000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 243515 + ... + 738464.

It is an arithmetic number, because the mean of its divisors is an integer number (13242000300).

Almost surely, 2243015253025 is an apocalyptic number.

243015253025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243015253025 is a deficient number, since it is larger than the sum of its proper divisors (74792754175).

243015253025 is a wasteful number, since it uses less digits than its factorization.

243015253025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982529 (or 982524 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 243015253025 its reverse (520352510342), we get a palindrome (763367763367).

The spelling of 243015253025 in words is "two hundred forty-three billion, fifteen million, two hundred fifty-three thousand, twenty-five".

Divisors: 1 5 19 25 95 475 521 2605 9899 13025 49495 247475 981979 4909895 18657601 24549475 93288005 466440025 511611059 2558055295 9720610121 12790276475 48603050605 243015253025