Search a number
-
+
107997428 = 227113111311
BaseRepresentation
bin1100110111111…
…10100011110100
321112012211121202
412123332203310
5210121404203
614414432032
72450651210
oct633764364
9245184552
10107997428
1155a64080
1230202618
13194b3a06
14104b3940
159734388
hex66fe8f4

107997428 has 48 divisors (see below), whose sum is σ = 243253248. Its totient is φ = 40716000.

The previous prime is 107997427. The next prime is 107997431. The reversal of 107997428 is 824799701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107997427) by changing a digit.

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, 3893 + ... + 15203.

It is an arithmetic number, because the mean of its divisors is an integer number (5067776).

Almost surely, 2107997428 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 107997428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121626624).

107997428 is an abundant number, since it is smaller than the sum of its proper divisors (135255820).

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

107997428 is a wasteful number, since it uses less digits than its factorization.

107997428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11364 (or 11362 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 107997428 is about 10392.1810992688. The cubic root of 107997428 is about 476.2165351942.

The spelling of 107997428 in words is "one hundred seven million, nine hundred ninety-seven thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 11 14 22 28 31 44 62 77 124 154 217 308 341 434 682 868 1364 2387 4774 9548 11311 22622 45244 79177 124421 158354 248842 316708 350641 497684 701282 870947 1402564 1741894 2454487 3483788 3857051 4908974 7714102 9817948 15428204 26999357 53998714 107997428