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12548628136 = 2311314797871
BaseRepresentation
bin10111010111111010…
…01101111010101000
31012101112110100200001
423223331031322220
5201144422100021
65433104352344
7622652402452
oct135375157250
935345410601
1012548628136
11535a412060
1225226156b4
13124ca14765
148708312d2
154d69e2091
hex2ebf4dea8

12548628136 has 64 divisors (see below), whose sum is σ = 27059650560. Its totient is φ = 5402424000.

The previous prime is 12548628133. The next prime is 12548628139. The reversal of 12548628136 is 63182684521.

It is an interprime number because it is at equal distance from previous prime (12548628133) and next prime (12548628139).

It is a super-2 number, since 2×125486281362 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12548628133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79281 + ... + 177151.

It is an arithmetic number, because the mean of its divisors is an integer number (422807040).

Almost surely, 212548628136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12548628136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13529825280).

12548628136 is an abundant number, since it is smaller than the sum of its proper divisors (14511022424).

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

12548628136 is a wasteful number, since it uses less digits than its factorization.

12548628136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97966 (or 97962 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The spelling of 12548628136 in words is "twelve billion, five hundred forty-eight million, six hundred twenty-eight thousand, one hundred thirty-six".

Divisors: 1 2 4 8 11 22 31 44 47 62 88 94 124 188 248 341 376 517 682 1034 1364 1457 2068 2728 2914 4136 5828 11656 16027 32054 64108 97871 128216 195742 391484 782968 1076581 2153162 3034001 4306324 4599937 6068002 8612648 9199874 12136004 18399748 24272008 33374011 36799496 50599307 66748022 101198614 133496044 142598047 202397228 266992088 285196094 404794456 570392188 1140784376 1568578517 3137157034 6274314068 12548628136