Search a number
-
+
38549130 = 2351284971
BaseRepresentation
bin1001001100001…
…1011010001010
32200112111110120
42103003122022
534332033010
63454124110
7645443064
oct223033212
980474416
1038549130
111a83a594
1210ab0636
137ca9349
145196734
1535b6e70
hex24c368a

38549130 has 16 divisors (see below), whose sum is σ = 92517984. Its totient is φ = 10279760.

The previous prime is 38549129. The next prime is 38549141. The reversal of 38549130 is 3194583.

It is a junction number, because it is equal to n+sod(n) for n = 38549091 and 38549100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642456 + ... + 642515.

It is an arithmetic number, because the mean of its divisors is an integer number (5782374).

Almost surely, 238549130 is an apocalyptic number.

38549130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38549130 is an abundant number, since it is smaller than the sum of its proper divisors (53968854).

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

38549130 is a wasteful number, since it uses less digits than its factorization.

38549130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284981.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 38549130 is about 6208.7945689965. The cubic root of 38549130 is about 337.8092419408.

The spelling of 38549130 in words is "thirty-eight million, five hundred forty-nine thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1284971 2569942 3854913 6424855 7709826 12849710 19274565 38549130