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13251005536 = 251947463711
BaseRepresentation
bin11000101011101001…
…00100110001100000
31021012111002211022211
430111310210301200
5204114224134121
610030515011504
7646241455126
oct142564446140
937174084284
1013251005536
11568a93564a
122699899b94
1313323a6ca2
148d9c27916
155284d3ce1
hex315d24c60

13251005536 has 48 divisors (see below), whose sum is σ = 28045301760. Its totient is φ = 6143230080.

The previous prime is 13251005533. The next prime is 13251005549. The reversal of 13251005536 is 63550015231.

It is a junction number, because it is equal to n+sod(n) for n = 13251005498 and 13251005507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13251005533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203280 + ... + 260431.

It is an arithmetic number, because the mean of its divisors is an integer number (584277120).

Almost surely, 213251005536 is an apocalyptic number.

13251005536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13251005536 is an abundant number, since it is smaller than the sum of its proper divisors (14794296224).

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

13251005536 is a wasteful number, since it uses less digits than its factorization.

13251005536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463787 (or 463779 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 13251005536 in words is "thirteen billion, two hundred fifty-one million, five thousand, five hundred thirty-six".

Divisors: 1 2 4 8 16 19 32 38 47 76 94 152 188 304 376 608 752 893 1504 1786 3572 7144 14288 28576 463711 927422 1854844 3709688 7419376 8810509 14838752 17621018 21794417 35242036 43588834 70484072 87177668 140968144 174355336 281936288 348710672 414093923 697421344 828187846 1656375692 3312751384 6625502768 13251005536