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12948872544 = 25345984673
BaseRepresentation
bin11000000111101000…
…00001110101100000
31020102102120212210000
430003310001311200
5203004402410134
65540523140000
7635612412666
oct140364016540
936372525700
1012948872544
115545334663
122614674600
1312b491037a
148aba5ac36
1550bc02e99
hex303d01d60

12948872544 has 120 divisors (see below), whose sum is σ = 38728194120. Its totient is φ = 4243083264.

The previous prime is 12948872543. The next prime is 12948872561. The reversal of 12948872544 is 44527884921.

12948872544 is a `hidden beast` number, since 1 + 2 + 94 + 8 + 8 + 7 + 2 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12948872543) 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 19 ways as a sum of consecutive naturals, for example, 110592 + ... + 195264.

It is an arithmetic number, because the mean of its divisors is an integer number (322734951).

Almost surely, 212948872544 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 12948872544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19364097060).

12948872544 is an abundant number, since it is smaller than the sum of its proper divisors (25779321576).

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

12948872544 is an equidigital number, since it uses as much as digits as its factorization.

12948872544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84754 (or 84737 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 12948872544 in words is "twelve billion, nine hundred forty-eight million, eight hundred seventy-two thousand, five hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 59 72 81 96 108 118 144 162 177 216 236 288 324 354 432 472 531 648 708 864 944 1062 1296 1416 1593 1888 2124 2592 2832 3186 4248 4779 5664 6372 8496 9558 12744 16992 19116 25488 38232 50976 76464 84673 152928 169346 254019 338692 508038 677384 762057 1016076 1354768 1524114 2032152 2286171 2709536 3048228 4064304 4572342 4995707 6096456 6858513 8128608 9144684 9991414 12192912 13717026 14987121 18289368 19982828 24385824 27434052 29974242 36578736 39965656 44961363 54868104 59948484 73157472 79931312 89922726 109736208 119896968 134884089 159862624 179845452 219472416 239793936 269768178 359690904 404652267 479587872 539536356 719381808 809304534 1079072712 1438763616 1618609068 2158145424 3237218136 4316290848 6474436272 12948872544