Search a number
-
+
34437690 = 23357219137
BaseRepresentation
bin1000001101011…
…1101000111010
32101210121122000
42003113220322
532304001230
63230041430
7565500300
oct203275072
971717560
1034437690
1118491601
12b649276
137199b41
144806270
153053b60
hex20d7a3a

34437690 has 192 divisors, whose sum is σ = 113270400. Its totient is φ = 7402752.

The previous prime is 34437679. The next prime is 34437691. The reversal of 34437690 is 9673443.

34437690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×344376902 = 2371908985072200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34437691) 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 95 ways as a sum of consecutive naturals, for example, 251302 + ... + 251438.

It is an arithmetic number, because the mean of its divisors is an integer number (589950).

Almost surely, 234437690 is an apocalyptic number.

34437690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 34437690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56635200).

34437690 is an abundant number, since it is smaller than the sum of its proper divisors (78832710).

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

34437690 is a wasteful number, since it uses less digits than its factorization.

34437690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 34437690 is about 5868.3634856747. The cubic root of 34437690 is about 325.3454000477.

The spelling of 34437690 in words is "thirty-four million, four hundred thirty-seven thousand, six hundred ninety".