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154140112 = 24723531129
BaseRepresentation
bin10010010111111…
…11110111010000
3101202001010111001
421023333313100
5303424440422
623143431344
73551112040
oct1113776720
9352033431
10154140112
117a00a825
1243755554
1325c1b489
1416685720
15d7eb227
hex92ffdd0

154140112 has 80 divisors (see below), whose sum is σ = 363191040. Its totient is φ = 61940736.

The previous prime is 154140067. The next prime is 154140127. The reversal of 154140112 is 211041451.

It is a self number, because there is not a number n which added to its sum of digits gives 154140112.

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, 135964 + ... + 137092.

It is an arithmetic number, because the mean of its divisors is an integer number (4539888).

Almost surely, 2154140112 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 154140112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181595520).

154140112 is an abundant number, since it is smaller than the sum of its proper divisors (209050928).

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

154140112 is a wasteful number, since it uses less digits than its factorization.

154140112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 154140112 is about 12415.3176358883. The cubic root of 154140112 is about 536.1733492918.

Adding to 154140112 its reverse (211041451), we get a palindrome (365181563).

The spelling of 154140112 in words is "one hundred fifty-four million, one hundred forty thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 16 23 28 46 53 56 92 106 112 161 184 212 322 368 371 424 644 742 848 1129 1219 1288 1484 2258 2438 2576 2968 4516 4876 5936 7903 8533 9032 9752 15806 17066 18064 19504 25967 31612 34132 51934 59837 63224 68264 103868 119674 126448 136528 181769 207736 239348 363538 415472 418859 478696 727076 837718 957392 1376251 1454152 1675436 2752502 2908304 3350872 5505004 6701744 9633757 11010008 19267514 22020016 38535028 77070056 154140112