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136161012 = 2231323137277
BaseRepresentation
bin10000001110110…
…10011011110100
3100111012200210110
420013122123310
5234324123022
621302223020
73242230611
oct1007323364
9314180713
10136161012
116a94a869
1239724a70
1322294b60
1414125508
15be4900c
hex81da6f4

136161012 has 96 divisors (see below), whose sum is σ = 360928512. Its totient is φ = 39638016.

The previous prime is 136160957. The next prime is 136161013. The reversal of 136161012 is 210161631.

136161012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 136161012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136161013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 491418 + ... + 491694.

It is an arithmetic number, because the mean of its divisors is an integer number (3759672).

Almost surely, 2136161012 is an apocalyptic number.

136161012 is a gapful number since it is divisible by the number (12) 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 136161012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180464256).

136161012 is an abundant number, since it is smaller than the sum of its proper divisors (224767500).

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

136161012 is a wasteful number, since it uses less digits than its factorization.

136161012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 136161012 is about 11668.8050802128. The cubic root of 136161012 is about 514.4591827964.

The spelling of 136161012 in words is "one hundred thirty-six million, one hundred sixty-one thousand, twelve".

Divisors: 1 2 3 4 6 12 13 23 26 39 46 52 69 78 92 137 138 156 274 276 277 299 411 548 554 598 822 831 897 1108 1196 1644 1662 1781 1794 3151 3324 3562 3588 3601 5343 6302 6371 7124 7202 9453 10686 10803 12604 12742 14404 18906 19113 21372 21606 25484 37812 37949 38226 40963 43212 75898 76452 81926 82823 113847 122889 151796 163852 165646 227694 245778 248469 331292 455388 491556 493337 496938 872827 986674 993876 1480011 1745654 1973348 2618481 2960022 3491308 5236962 5920044 10473924 11346751 22693502 34040253 45387004 68080506 136161012