Search a number
-
+
15242030 = 251789659
BaseRepresentation
bin111010001001…
…001100101110
31001200101010122
4322021030232
512400221110
61302404542
7243361256
oct72111456
931611118
1015242030
118670621
125130752
13320886b
14204a966
151511255
hexe8932e

15242030 has 16 divisors (see below), whose sum is σ = 29049840. Its totient is φ = 5738112.

The previous prime is 15242027. The next prime is 15242041. The reversal of 15242030 is 3024251.

15242030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44660 + ... + 44999.

It is an arithmetic number, because the mean of its divisors is an integer number (1815615).

Almost surely, 215242030 is an apocalyptic number.

15242030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15242030 is a deficient number, since it is larger than the sum of its proper divisors (13807810).

15242030 is a wasteful number, since it uses less digits than its factorization.

15242030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89683.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 15242030 is about 3904.1042506572. The cubic root of 15242030 is about 247.9405749919.

Adding to 15242030 its reverse (3024251), we get a palindrome (18266281).

The spelling of 15242030 in words is "fifteen million, two hundred forty-two thousand, thirty".

Divisors: 1 2 5 10 17 34 85 170 89659 179318 448295 896590 1524203 3048406 7621015 15242030