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12554225240 = 2352313645897
BaseRepresentation
bin10111011000100101…
…00100011001011000
31012101220222201110012
423230102210121120
5201202340201430
65433424341052
7623051103524
oct135422443130
935356881405
1012554225240
115362595267
122524474788
131250c2425b
1487148ad84
154d724a695
hex2ec4a4658

12554225240 has 32 divisors (see below), whose sum is σ = 29475139680. Its totient is φ = 4803355392.

The previous prime is 12554225237. The next prime is 12554225267. The reversal of 12554225240 is 4252245521.

It is a junction number, because it is equal to n+sod(n) for n = 12554225197 and 12554225206.

It is a congruent 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, 6822029 + ... + 6823868.

It is an arithmetic number, because the mean of its divisors is an integer number (921098115).

Almost surely, 212554225240 is an apocalyptic number.

12554225240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12554225240 is an abundant number, since it is smaller than the sum of its proper divisors (16920914440).

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

12554225240 is a wasteful number, since it uses less digits than its factorization.

12554225240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13645931 (or 13645927 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The spelling of 12554225240 in words is "twelve billion, five hundred fifty-four million, two hundred twenty-five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 13645897 27291794 54583588 68229485 109167176 136458970 272917940 313855631 545835880 627711262 1255422524 1569278155 2510845048 3138556310 6277112620 12554225240