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126561160 = 23511279331
BaseRepresentation
bin1111000101100…
…10101110001000
322211010222021101
413202302232020
5224344424120
620320351144
73064515655
oct742625610
9284128241
10126561160
1165493300
12364754b4
13202b347b
1412b46c2c
15b19e90a
hex78b2b88

126561160 has 96 divisors (see below), whose sum is σ = 317923200. Its totient is φ = 45302400.

The previous prime is 126561089. The next prime is 126561161. The reversal of 126561160 is 61165621.

It is not an unprimeable number, because it can be changed into a prime (126561161) 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 23 ways as a sum of consecutive naturals, for example, 382195 + ... + 382525.

It is an arithmetic number, because the mean of its divisors is an integer number (3311700).

Almost surely, 2126561160 is an apocalyptic number.

126561160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126561160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158961600).

126561160 is an abundant number, since it is smaller than the sum of its proper divisors (191362040).

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

126561160 is a wasteful number, since it uses less digits than its factorization.

126561160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 126561160 is about 11249.9404442868. The cubic root of 126561160 is about 502.0729406242.

The spelling of 126561160 in words is "one hundred twenty-six million, five hundred sixty-one thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 79 88 110 121 158 220 242 316 331 395 440 484 605 632 662 790 869 968 1210 1324 1580 1655 1738 2420 2648 3160 3310 3476 3641 4345 4840 6620 6952 7282 8690 9559 13240 14564 17380 18205 19118 26149 29128 34760 36410 38236 40051 47795 52298 72820 76472 80102 95590 104596 130745 145640 160204 191180 200255 209192 261490 287639 320408 382360 400510 522980 575278 801020 1045960 1150556 1438195 1602040 2301112 2876390 3164029 5752780 6328058 11505560 12656116 15820145 25312232 31640290 63280580 126561160