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12485724148 = 2229376774297
BaseRepresentation
bin10111010000011010…
…10000011111110100
31012020011002111121201
423220031100133310
5201032321133043
65422540222244
7621256622062
oct135015203764
935204074551
1012485724148
115327958397
12250553a984
13123c98ba71
14866339032
154d1218c4d
hex2e83507f4

12485724148 has 48 divisors (see below), whose sum is σ = 23254071120. Its totient is φ = 5854657536.

The previous prime is 12485724091. The next prime is 12485724157. The reversal of 12485724148 is 84142758421.

12485724148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4119329124 + 8366395024 = 64182^2 + 91468^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12485724098 and 12485724107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2903536 + ... + 2907832.

It is an arithmetic number, because the mean of its divisors is an integer number (484459815).

Almost surely, 212485724148 is an apocalyptic number.

It is an amenable number.

12485724148 is a deficient number, since it is larger than the sum of its proper divisors (10768346972).

12485724148 is a wasteful number, since it uses less digits than its factorization.

12485724148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044 (or 5042 counting only the distinct ones).

The product of its digits is 573440, while the sum is 46.

The spelling of 12485724148 in words is "twelve billion, four hundred eighty-five million, seven hundred twenty-four thousand, one hundred forty-eight".

Divisors: 1 2 4 29 37 58 74 116 148 677 1073 1354 2146 2708 4292 4297 8594 17188 19633 25049 39266 50098 78532 100196 124613 158989 249226 317978 498452 635956 726421 1452842 2905684 2909069 4610681 5818138 9221362 11636276 18442724 84363001 107635553 168726002 215271106 337452004 430542212 3121431037 6242862074 12485724148