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61127136 = 253571123
BaseRepresentation
bin1110100100101…
…1100111100000
311021000120200000
43221023213200
5111122032021
610022100000
71341400140
oct351134740
9137016600
1061127136
11315607a4
121857a600
13c883005
148192920
155576b26
hex3a4b9e0

61127136 has 144 divisors (see below), whose sum is σ = 206204544. Its totient is φ = 17449344.

The previous prime is 61127117. The next prime is 61127137. The reversal of 61127136 is 63172116.

61127136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61127137) 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, 53871 + ... + 54993.

It is an arithmetic number, because the mean of its divisors is an integer number (1431976).

Almost surely, 261127136 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 61127136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103102272).

61127136 is an abundant number, since it is smaller than the sum of its proper divisors (145077408).

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

61127136 is a wasteful number, since it uses less digits than its factorization.

61127136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155 (or 1135 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 61127136 is about 7818.3844878594. The cubic root of 61127136 is about 393.9230096845.

The spelling of 61127136 in words is "sixty-one million, one hundred twenty-seven thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 72 81 84 96 108 112 126 144 162 168 189 216 224 243 252 288 324 336 378 432 486 504 567 648 672 756 864 972 1008 1123 1134 1296 1512 1701 1944 2016 2246 2268 2592 3024 3369 3402 3888 4492 4536 6048 6738 6804 7776 7861 8984 9072 10107 13476 13608 15722 17968 18144 20214 23583 26952 27216 30321 31444 35936 40428 47166 53904 54432 60642 62888 70749 80856 90963 94332 107808 121284 125776 141498 161712 181926 188664 212247 242568 251552 272889 282996 323424 363852 377328 424494 485136 545778 565992 636741 727704 754656 848988 970272 1091556 1131984 1273482 1455408 1697976 1910223 2183112 2263968 2546964 2910816 3395952 3820446 4366224 5093928 6791904 7640892 8732448 10187856 15281784 20375712 30563568 61127136